Exchange 2013 certificate error name mismatch For more details: TLS task failed Additionally, here’s a blog on Mail flow through Connector Fails with 450 4. Exchange/Outlook 2010 autodiscover certificate error name mismatch Recently some users have been receiving the following autodiscover certificate error when opening outlook: Security Alert: autodiscover. ’ Im no longer getting certificate mismatch message, but I want to confirm that external connections are using the certificate… Sep 6, 2015 · -Any machines locally connected get an ssl error stating the name on the certificate is invalid Jul 16, 2020 · 1 All our mailboxes are now in Exchange Online / Office 365, and I have amended the autodiscover record to point to autodiscover. Aug 8, 2013 · OK so I have exchange 2013 installed and working but autodiscover is failing saying certificate host name mismatch. cnd-net. or whatever else you refer to that server as. Part of Understanding Different Types of SSL Certificates (DV, OV, EV). We use Self Signed Certificates for our Clients But for our hybrid Configuration we use a bought certificate Is it a binding Problem in our IIS config ?? Nov 25, 2021 · Or the certificate’s subject name matches the domain name that you entered if you chose to use only a specific domain name for TLS verification. This certificate was configured for authentication with other Exchange servers. Recently I moved them from their own ISP email to Exchange mailboxes. We are having issues with IMAP as… Aug 14, 2018 · Ok, so i am unclear how i am supposed to fill out these entries that you have listed. The new server its on a . This property required to import certificate to SQL Server. local AD domain and two Exchange 2016 servers (one for normal mailboxes and one for archives). Why can’t we do that with O365? Sep 24, 2023 · thank you Migrated from ExchangeServer2013 to ExchangeServer2019 I have already uninstalled 2013 because it was necessary to keep the host name the same during migration. Mar 12, 2013 · Type the command Get-Exchangecertificate | FL in Exchange powershell and get the list of certificate details Also check the eventviewer : MsExchange Transport events for the certificate required / expired / with the FQDN and the services /domain name required to be renewed or created Also while creating a new or renewing a certificate you can assign the domain name / fqdn / and the services Jan 27, 2020 · Hi, I have a client with SBS 2011/Exchange 2010 and since past few weeks or maybe few months Outlook 2013/2016 clients cannot access Exchange from remote. Jul 12, 2021 · Greetings all, Running a single, on-premise Exchange 2013 server here. com autodiscover is at autodiscover. Nov 17, 2021 · I have recently reconfigured our Exchange Server infrastructure and now my users are getting a security alert when they start Outlook. However the certificate DOES appear on exchange 2016, because name on PC now does… Feb 21, 2013 · Hey guys, I’m having an issue with my Exchange. A Name Mismatch in the Web Browser occurs when the common name listed on an SSL certificate doesn’t match the name displayed in the URL bar. Jun 15, 2020 · Exchange 2010 AutoDiscover for Multi-Tenant This blog post will explain a solution to prevent the need to use a massive SAN (Subject Alternate Name) SSL certificate for all your tenant domain names. Jul 1, 2021 · Inner Exception: AuthenticationException: The remote certificate is invalid according to the validation procedure: RemoteCertificateNameMismatch, RemoteCertificateChainErrors. Set-OutlookProvider -Identity EXCH -CertPrincipalName msstd:(Subject name of certificate) Set-OutlookProvider -Identity EXPR -CertPrincipalName msstd:(Subject name of certificate) Set-OutlookProvider -Identity WEB -CertPrincipalName msstd:(Subject name of certificate) Can you fill in an example with actual Describes an issue that triggers a "The name on the security certificate is invalid or does not match the name of the site" warning in Outlook in a dedicated or ITAR Office 365 environment. We were switching over from an Exchange 2003 to an Exchange 2010, two different boxes. FYI. Jul 27, 2022 · We have installed Exchange 2013 and 1026 in same AD/same forest Certificate name and computer name matches, so no cert warning when users launch Outlook and connect. If this issue occurs, Microsoft Office Outlook 2007 clients receive the following certificate warning: May 14, 2014 · update autodiscover URL update Internal URL for EWS update internal URL for OAB update internal URL for UM Web Service update autodiscover show post in topic Topic Replies Views Activity Exchange 2013 SSL internal errors Software & Applications microsoft-exchange , team-collaboration , question 18 282 September 11, 2015 When a user launches Outlook and is prompted to do the initial setup, they get a certificate name mismatch warning. com) under… Nov 7, 2024 · We recently setup Exchange Hybrid on Classic mode. If the certificate is self-signed, it is not trusted by the browser and the user will May 8, 2017 · I have a self signed certificate on my Apache2 server and I am trying to get the configuration correct such that the 'Issued to:' name on the certificate matches the HTTPS address in the address ba Jun 15, 2017 · Learn more about Exchange 2010: Fix for an Invalid certificate and related issues from the expert community at Experts Exchange Dec 18, 2024 · You get an Exchange Event ID 12014 alert because the Microsoft Exchange Server did not find a certificate and the user gets which holds the domain name mail. When I go to view the certificate on their machine it shows a root certificate from the hosting service network solutions (certificate was issued by GODaddy), and not the SSL certificate of my exchange server. The server was migrated from exchange 2k3, to 2010, to 2013. If your certificate has only the one name, that is likely the problem. Checked Alienvault as well. The replica is telling you that the source Hyper-V server has the wrong name set for the common name on the certificate. We’ve recreated the virtual directories, set URL’s on all of them, recycled IIS app pools (all of this multiple times), recreated the Exchange certificate, recreated the Outlook profiles… Maybe I’ve Jun 13, 2011 · SSL Certificate Name Mismatch The name mismatch warning indicates that users might not be able to connect to their mailboxes by using Outlook Anywhere or Exchange ActiveSync for Exchange Server 2007. Found the validation failed if we specified subject name (the wildcard certificate *. Outlook looks for that autodiscover name in the SSL cert first. Problem Seen in Outlook when connecting to a mailbox on an Exchange Server, its caused by using a self signed certificate OR a purchased certificate, where the internal and external names are different. The certificate that your email server is providing is valid. Add an SSL certificate to your Exchange server 2013. I agree – check everything you can to make sure the cert isn’t valid and Sep 3, 2025 · Describes the scenarios when the AutoDiscover mismatch warning occurs in Outlook 2016 and later versions, and provides workarounds that you can use. local rather than the public domain name (I’ve checked a different Exchange server in another organisation, it has the same settings). Did you create a new SAN certificate for the new build with all the alternative names you would need and then install it on the new Exchange server? Well, now it is all fine. Normally I don’t give “Autodiscover” a moment’s thought. As soon as the 2019 machine came into the mix tho, we started seeing those same SSL errors. "The name on the security certificate is invalid or does not match the name of the site" How can I fix this problem? Sep 5, 2023 · Key Takeaways: SSL certificate with wrong hostname errors are a common problem that can lead to security vulnerabilities and loss of trust from website visitors. I had previously installed all the prerequisites and run the schema preparation step, two weeks earlier, just to do it in steps. Completed without errors. Why can’t we do that with O365? Dec 23, 2019 · If there’s a mismatch between the domain name and the name that the SSL certificate has been issued to, this may cause the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. ourdomain. You have to put in the names into the certificate, like you call it. Aug 13, 2025 · To fix the error that the server you are connected to is using a security certificate that cannot be verified, you can check whether the certificate name matches the mail server. We knew they were coming. com as one of it’s SANs. My server is at mail. Since our certificate supports multiple names running on Exchange (UCC) from a public source (and we still had some ‘free’ slots available for new names), we just had to rekey the certificate to get a new requestfile, go to Apr 15, 2016 · Describes an issue in which you don't receive mail and the STARTTLS command is missing on a hybrid server after you install a new certificate. During setup we ensure that the Transport Certificate is valid and we assigned our 3rd party cert. The name on the security certificate is invalid or does not match the name of the site. They are all deployed with PKI certificate (ex:… May 30, 2025 · To resolve this issue, you should check that the certificate is installed correctly on the server and that it is issued for the correct domain name. Nov 29, 2017 · Learn more about Fix for Exchange server 2016/2019 certificate and related issues from the expert community at Experts Exchange Nov 17, 2021 · I have recently reconfigured our Exchange Server infrastructure and now my users are getting a security alert when they start Outlook. However, there is a problem with the site’s security certificate. domain. We used a temporary Exchange Server for mailbox migration. However, when running Outlook it still throws a certificate error, complaining about the self-signed cert on the Exchange server. May 30, 2025 · To resolve this issue, you should check that the certificate is installed correctly on the server and that it is issued for the correct domain name. com has … Apr 15, 2016 · As above typically you’re going to want a UCC/SAN cert that includes autodiscover. SAN Certificate (Subject Alternative Name Certificate) You can setup the wildcard certificate if the domain name for all the sites are same and first level subdomain changes. Jul 29, 2020 · We did notice that when we changed the Certificate binding in IIS to use the SAN Certificate on the Hybrid CAS server (Server05) some users experienced the Outlook popup window with a red X about a certificate mismatch. An… Learn about name mismatch errors in this comprehensive security guide. Just one 2016 Server at each project location. com or whatever you have yours set to) hostnames that are in use. net. May 9, 2014 · Strange thing, if I go into the mail properties on the Outlook 2013 computer it still shows the internal network server name… but I guess deleting and recreating the profile changed some hidden setting about the autodiscover. wpc. Apr 18, 2024 · During the Exchange Server setup, a new SCP is created in Active Directory (AD). √ The security certificate is from a trusted party √ The security certificate date is valid X The name on the security certificate is invalid or does not match the name of the site Apr 18, 2024 · During the Exchange Server setup, a new SCP is created in Active Directory (AD). There is a subject name, which is usually the primary name, and in case of a SAN cert, additionally alternative subject names. Sep 11, 2014 · If the URL Outlook believes it is talking to is not listed on that certificate -- be it as the common name or a subject alternative name (SAN) -- this will elicit Outlook to present the dialog you describe in your initial post. You can check in the browser to make sure the name and thumbprint match. Yes, I have SMTP and IIS services on the purchased SSL. at. I added a Exchange 2019 server and instantly (most) Outlook users are getting a popup shortly after opening Outlook that says “the name on the security certificate is invalid or does not match the name of the site” and lists the . Dec 9, 2021 · Certificates on Exchange-365 for sni27c99gl. Follow the resolutions provided in this article and get all your woes related to SSL Certificates resolved. Jun 25, 2025 · After you configure a network device to require certificate validation between Outlook and Exchange Server 2019, 2016, or 2013, you experience connection failures in Outlook clients. If the certificate is self-signed, it is not trusted by the browser and the user will Nov 17, 2021 · I have recently reconfigured our Exchange Server infrastructure and now my users are getting a security alert when they start Outlook. Jun 18, 2014 · Translation: it says that the certificate is issued by an authorized provider (VeriSign in this case), the date is valid BUT there's a name mismatch (the name written on the certificate doesn't correspond to the server's name). This property is required by SQL Server to import a certificate. Solution Before proceeding if you have How to FIX Common Name Mismatch Error Common Name Mismatch Error always happens when the Common name or SAN value of your Multi-domain SSL certificate does not match the domain. This module examines how clients connect to Microsoft 365. “Microsoft Exchange could not find a certificate that contains the domain name EXCHANGE. Provides a solution. . Jan 13, 2022 · The Microsoft Remote Connectivity Analyzer displays the following warning when the FDQN does not match the host address or URL that the client uses to make a connection with the server: SSL Certificate Name Mismatch" Oct 15, 2025 · There is a problem with the proxy server’s security certificate, %s. Then, make sure each host has the replica partner's self-issued certificate installed. FQDN:443) has the following errors: The SSL certificate contains a common name (CN) that does not match the hostname. It actually uses the “thumbprint” ID, which is unique. ” Mar 3, 2015 · The easiest solution (by a wide margin) is to perform an Exchange migration to get your Exchange server onto a properly named domain for which you can get a certificate issued from a trusted public certificate authority. For example, you connect to the website via the IP address or an internal name, but the certificate was issued to the fully-qualified domain name (or vice versa). If the certificate was issued for a different domain name or a different subdomain, you will need to obtain a new certificate for the correct domain name. Aug 2, 2012 · Information you exchange with this site cannot be viewed or changed by others. Is it issued from an internal certificate authority where you could easily issue a new certificate with a subject alternate name? If not, then you may need to look at using a different IP address with an SSL listener with its own certificate - one IP for each name. Updated the certificate for the 'Outbound to 365' send connector and the 'Default Frontend [servername]' receive connector. Oct 14, 2025 · Note: If, after repairing your SSL Certificate and rebooting your server, you are still receiving intermediate certificate errors, you may need to force the server to clear the current certificate chain from memory and reload it. An Exchange certificate should include the autodiscover and regular (ie webmail. Oct 15, 2019 · We had a similar issue with one of the job portals which is hosted on the cloud but they asked us for the certificate & got it installed in our instance, now it is getting resolved correctly to our wildcard certificate without any host name mismatch. Exchange 2010 can be setup for Multi-Tenna… Exchange 2013, 2016 - Autodiscover with multiple domains and single name certificate Oct 14, 2015 · Outlook may display a security alert with certificate warning messages after installing Exchange Server 2016 into your environment. local domain this issue was not happening. How to Fix Outlook Certificate Error: Step-by-Step Guide Here’s how we fixed the Outlook certificate error: 1. Active Directory is set up with . Therefore, it cannot support the STARTTLS SMTP verb for the connector Internet with FQDN guidelines of mail. domainname. com as the root of the forest Mar 5, 2020 · It being Outlook, maybe it’s trying to find the autodiscover host and connecting to that first. this setup (Old Exchange) was already done prior to taking on this Fix common name mismatch or SSL certificate with wrong hostname error in few easy steps. An Outlook client will accidentally discover the unconfigured SCP and will try to connect to the new Exchange Server instead of the Autodiscover FQDN. In order for an encrypted connection to commence, both the name on the certificate and the name in the URL have to match. Verifying proper certificate installation and configuration is crucial to prevent hostname mismatch errors. Small offices with Exchange 2016 CU5 co-existing on the DC. au but the name on the certificate from the Jul 1, 2021 · Inner Exception: AuthenticationException: The remote certificate is invalid according to the validation procedure: RemoteCertificateNameMismatch, RemoteCertificateChainErrors Oct 14, 2012 · SSL certificates are very easy in general. The message is “The name on the security certificate is invalid or it does not match … Verify the connector configuration and the installed certificates to make sure that there is a certificate with a domain name for that FQDN. The message is “The name on the security certificate is invalid or it does not match the name of the site”. The certificate was created under a fully qualify domain name although the old exchange 2013 was also set as a . A perfect script to change these can be found here Only thing I have found with script is that you need to change all the " as it does not copy correctly. Create internal DNS zones for the external name pointing to the internal IP Fix the internal URL for ALL the services, autodiscover, owa, oab, etc. I installed a UCC SSL certificate from go daddy on my exchange 2010 server. local FQDN of the new Exchange server. The issuer and subject name on the new cert matches the old one so I set Jan 22, 2024 · SSL Certificate Name Mismatch - Connectivity Analyzer The Microsoft Remote Connectivity Analyzer displays the following warning when the FDQN does not match the host address or URL that the client uses to make a connection with the server: SSL Certificate Name Mismatch" Secure App with a Custom Domain and Certificate - Azure App Service Learn how to secure your brand with App Service by using Oct 15, 2019 · We had a similar issue with one of the job portals which is hosted on the cloud but they asked us for the certificate & got it installed in our instance, now it is getting resolved correctly to our wildcard certificate without any host name mismatch. All these names can be used on the client. Jun 8, 2017 · This article will help to fix the below errors for MS Exchange Server 2013 I. outlook. Jun 12, 2015 · Add the new cert and the mismatch errors start up. Jul 29, 2021 · After running HCW (Full Classic Hybrid + Centralized Mail Transport), the outbound communication between EXO to Exchange Server 2013 didn't work. Last friday, during off business hours, I installed Exchange 2019 on my Windows 2022 Core. Aug 14, 2018 · When you import the SSL certificate it has to be done on every server that will be using it. So there is no need to hurry, but I would like to know what could I've done better and learning from my errors. Would it make sense that if you have 7 self-signed certificates with the same name, that it would pull from the oldest? May 8, 2017 · I have a self signed certificate on my Apache2 server and I am trying to get the configuration correct such that the 'Issued to:' name on the certificate matches the HTTPS address in the address ba Common Name Mismatch Error is a widespread error that occurs when the Common Name or SAN value of your SSL / TLS certificate does not correspond to the domain name. Jul 7, 2021 · Event ID 12014, MSExchangeTransportSubmission - Microsoft Exchange could not find a certificate that contains the domain name InternalServerName. Jun 29, 2023 · Learn how to fix and prevent the certificate warning in Outlook during or after a new Exchange Server installation in the organization. See Reconfigure the Certificate for your IIS Website or Exchange Domain. Jul 6, 2023 · Make sure each host has the opposite's trusted root authority certificate installed. The name of the security certificate is invalid or does not match the name of the site. Oct 15, 2019 · Are you sure your internal DNS is not being used to resolve - what is the certificate error I have just converted from Exchange 2003 to Exchange 2010. (Better to name your certs uniquely just for your own identification) But yes, if the domain names listed are the same Exchange is supposed to pull the oldest, if there is a conflict. Feb 9, 2021 · The server certificate on the destination computer (ourServer. Provides a resolution. Therefore, it is unable to support the STARTTLS SMTP verb for the connector Oct 13, 2020 · I need help with a problem in the process of migration from Exchange Server 2013 CU23 to Exchange Server 2019. as well as mail. We wanted this new Exchange to be started from scratch rather being converted over Oct 22, 2013 · Outlook clients report a Certificate name Mismatch after an SSL Certificate is added to an Exchange Server Article ID: 208 Last updated: 22 Oct, 2013 Nov 18, 2020 · Problem Seen in Outlook when connecting to a mailbox on an Exchange Server, its caused by using a self signed certificate OR a purchased certificate, where the internal and external names are different. edgecastcdn appear invalid. The event log is being plastered with Event ID 12014 complaining about all my receive connectors. local in the personal store on the local computer. The certificate used is the signed certificate for the server, using its external name. Confirm with the Get commands. I explained that when on the VPN they can use Outlook as if they were in the main office. If the connector’s FQDN is not identified, the system’s FQDN is used. At issue is an Exchange 2019 server on failing hardware that I reinstalled in a VM. This server is currently… Jun 2, 2017 · Then do a netstat, wireshark, or equivalent to see where Outlook is pointing to Exchange. Jan 20, 2019 · One problem that commonly occurs with SSL Certificates is name mismatch. Verify the connector configuration and the installed certificates to make sure that there is a certificate with a domain name for that FQDN. You can include the short name and IP address in the SAN (subject alternate name) field on the certificate, so that the server identifies itself with a name that matches the certificate any way you connect to it. or webmail. If not on the VPN they can Feb 22, 2013 · Exchange Certificate Name Mismatch Collaboration microsoft-exchange question jay6111 (Jay6111) February 22, 2013, 8:51pm Nov 15, 2009 · Find answers to How can I resolve the SSL Certificate mismatch error on Outlook 2007 ? from the expert community at Experts Exchange Jul 29, 2020 · Error: The selected certificate does not have the KeySpec Exchange property. company. Jun 25, 2025 · Fixes an issue that several client protocols such as ECP, OWA, Exchange ActiveSync, and Exchange Management Shell can't connect. Enabled using Enable-ExchangeCertificate -thumbprint -Services IIS,SMTP. This is why you're seeing a certificate warning in Outlook. com into the cert, and this cert is assigned to the RD Gateway server and is Feb 26, 2013 · Exchange Certificate Name Mismatch Collaboration question microsoft-exchange Jono (Jono) February 26, 2013, 8:56pm Jul 14, 2021 · Nikolas_Athanasakis My certificate was valid till 2027 but my Windows 2019 Core server did updates (2 Feb 2022) and rebooted and after the reboot ecp and owa was broken. mydomain. local still, you just need to change the default internal addresses that are created based on the servers name. Import error: 0x2, Windows Native Error: 0x80092004 The selected certificate does not contain server authentication key usage property. No information found online related to this specific url. Sep 24, 2023 · thank you Migrated from ExchangeServer2013 to ExchangeServer2019 I have already uninstalled 2013 because it was necessary to keep the host name the same during migration. companyname. Apr 21, 2016 · Happy Friday! I am taking over a project from a previous colleague and I am having problems finding out where he went wrong. org Information you exchange with this site cannot be viewed or changed by others. Test each server locally (or with a hosts file pointing to that server’s IP) and verify that the SSL certificate is correct. This error can happen even if the correct certificate is installed properly. local). From what I understand the name does not have to be the same as the server? Edit : I create a new function certificate and set the CN to the DNS name of the server itself. 4. Let me tell you what I did and see if that gives you some insight on what I’m dong wrong. Make sure that internal and external DNS and your network configuration are pointing that namespace at the correct Exchange server. Our French branch office connects to us via VPN to use shared files and business software. Dec 22, 2023 · This often happens when: The certificate has expired The name on the certificate doesn’t match the server domain The certificate authority is untrusted These errors prevent Outlook from establishing a secure connection. My question is: why is it connecting to this Exchange server at all? Feb 22, 2013 · Well it appears that it is using the wrong certificate. Nov 4, 2024 · It’s the “Microsoft Exchange” self signed certificate and the mismatch it’s complaining about is because the certificate has the Windows domain FQDN server. I updated the third party certificate on Exchange as I always do. You may see different error messages, it depends on the browser you are using. Jan 20, 2021 · Hi, I have deployed Exchange 2019 in our environment, two servers, Mail-1 and Mail-2 in primary site and one, Mail-3 on secondary site, in DAG configuration and site resilience. Apr 20, 2016 · There is a self-signed certificate that is correct and in exchange as well as the snap in and need to figure out how to get imap to look for that certificate rather than this other broken one. I was the man to do it although I have no previous experience with Exchange really. So if you put remote. Aug 3, 2021 · Get-ExchangeCertificate -thumbprint “Thumbprint” | New-ExchangeCertificate Once this has been done, change the certificate binding on your Exchange Server by opening IIS, browsing to the “Exchange Back End “site, selecting “Bindings” and editing the HTTPS binding to use the new certificate. Not sure where to look for exactly as the certificate shows the CN as the DNS name of the PC that seems to be correct. Jan 3, 2022 · Existing environment with . In order to establish a secure connection, your email server must provide a certificate to Outlook in order to prove its identity. Mar 26, 2022 · Describes the scenarios when the AutoDiscover mismatch warning occurs in Outlook 2016 and later versions, and provides workarounds that you can use. The certificate on the Exchange Nov 17, 2021 · I have recently reconfigured our Exchange Server infrastructure and now my users are getting a security alert when they start Outlook. We were switching over from an Exchange 2003 to an Exchange 2010, two different b… Jan 27, 2022 · The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization. Jul 4, 2024 · I'm trying to RDP to a Windows 10 computer and I'm getting a name mismatch error stating that it was expecting domain. Aug 22, 2014 · You can use the . However, the domain name (the portion of your email address that appears after the @ symbol) is not listed in the certificate. The name on the security certificate is invalid or Feb 21, 2013 · Hey guys, I’m having an issue with my Exchange. May 15, 2014 · Cached Exchange mode is already turned off on our clients, so that’s not it… @Bob6279: Problem is, we’ve done so many things at this point, I really don’t remember all of it. Because you removed the Microsoft Exchange Self-Signed certificate from the Exchange Back End website, and cleared the IIS cache. The Outlook 2007 clients started getting a certificate mismatch warning because the built in certificate that the Outlook clients were pointing to was the internal name of the server (blgexchserv1. at in the storage of a local system. Apr 15, 2016 · Do you have a certificate from a third party? Is it a UCC (multi-name) certificate? It needs to have autodiscover. The mismatch is coming in because the server is identifying itself with its internal name. Each client computer has a host file that points this CN name to a the specific IP of the server. The message is “The name on the security certificate is invalid or it does not match … Sep 23, 2019 · That's a good move Now you only need to request the new certificate, then please run to certbot certificates and see what's the full certificate path for the new certificate, then find the Nginx virtual host (SSL/Port 443) and replace the previous reference to the new one. So if clients are within company LAN, Outlook works fine, but as soon as they leave LAN network, Outlook throws out error: There is a problem with the proxy server’s security certificate. If this certificate exists, run Enable-ExchangeCertificate -Services SMTP to make sure that the Microsoft Exchange Transport service has access to the certificate key. Jul 22, 2025 · Any difference will cause the web browser to halt and display a name mismatch error. We checked on IIS that "Default Front End" certificates are assigned… Feb 15, 2016 · How to correctly configure the TlsCertificateName on Exchange Server receive connectors to allow SMTP clients to securely authenticate without errors. To fix this, i ran the commands to create a new OAuth certificate, removed the old one and then rebooted Apr 18, 2016 · I installed the certificate, however I am still getting a message stating that ‘An encrypted connection to your mail server is not available. Oct 24, 2023 · It’s a certificate name mismatch error and you can click yes and continue to outlook normally. When a new email is opened up, the certificate pops-up. Certificate error "name on the security certificate is invalid or does not match the name of the site" Mar 25, 2020 · We had a vendor migrate us from Exchange 2010 to Exchange 2016 and since then when all users launch Outlook they get a Security Alert saying “The name on the security certificate is invalid or does not match the name of the site. Solution Before proceeding if you have an A or CNAME record in your DNS for autodiscover then DELETE it Describes an issue that triggers a "The name on the security certificate is invalid or does not match the name of the site" warning in Outlook in a dedicated or ITAR Office 365 environment. local domain name and the certificate message says that the name does not match target site. Jul 28, 2022 · I'm running an Exchange 2016 Mailbox server and am getting the below error: Microsoft Exchange could not load the certificate with thumbprint of C372F649E3E06A907952BADAE12C689B676C53C7 from the personal store on the local computer. com. I have the same problem as already asked by ShiftT Feb 13, 2023 · We have a certificate on the environment for 2013 that ran without issue. Describes an issue that triggers a "The name on the security certificate is invalid or does not match the name of the site" warning in Outlook in a dedicated or ITAR Office 365 environment. au but the name on the certificate from the Feb 6, 2022 · The subject certificate was issued by Certificate Authority using the computer template. Apr 24, 2017 · Error message when migrating from Exchange 2013 to Exchange 2016: A version mismatch was detected (Actual:6, Expected:5). Jan 18, 2023 · I'd look to go through each virtual directory on all servers and make sure the internal and external URI are using the name in the certificate. 317 SubjectMismatch for your reference and hope it is helpful to you. Apr 21, 2016 · If you mean the certificate name you see in Exchange, that doesn’t matter. Just to note: - Exchange environment Feb 22, 2022 · The Microsoft Remote Connectivity Analyzer displays the following warning when the FDQN does not match the host address or URL that the client uses to make a connection with the server: SSL Certificate Name Mismatch" Nov 4, 2012 · How to assign an SSL certificate to one or more services on an Exchange 2013 server. If its not your dns name on your certificate, this will likely cause your mismatch warning. Installed the certificate using Certificates MMC. Apr 8, 2016 · After recently updating our SSL certificate after it expired, I’m having remote users getting pop up messages saying there is a certificate mismatch. In the event log, i could see constant info messages to say that all the exchange items were either missing or corrupt. Jan 5, 2021 · In Exchange 2016 or even later or earlier versions, you might have configured your virtual directories and have an error in it but did not notice the error. com mail. blg. Jan 28, 2014 · We run Exchange 2007 on-premise with Outlook clients. Check SCP in Services and the SCP is good with the new name Apr 21, 2014 · The proper way, of course, it to reissue the certificates on your machines. zwzoem hduz nymp euyrp ptkfh ywwnq kjkv durgixi jhzan tnww ryiy jsq uqlx zjl ownzoi