Outlook Error The Target Principal Name Is Incorrect
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Warning" dialog box with the message; The server you are connected to is using a security certificate that cannot be verified. The target principal name is incorrect. I clicked on "View Certificate" and installed the certificate, but I still get this dialog each
Internet Security Warning Outlook 2016
time I start Outlook. Clicking "Yes" each time allows me to use Outlook as normal
Internet Security Warning Outlook 2010
but how can get rid of this dialog? Usually you get this error when you are using a shared hosting account with outlook the name on the security certificate is invalid your own domain and connect via SSL. Another common cause is that your ISP has changed the name of their mail server and is redirecting you from the old server name to the new one and the name http://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_winother/outlook-error-target-principal-name-is-incorrect/837844db-696e-4f59-9b86-4d4366e1ff65 of the old server isn’t on their new SSL certificate. Looking at the certificate usually provides the answer. Name on the certificate should match the name of the mail server The solution is quite simple; click on the “View Certificate…” button and look at the “Issued to” name. This is usually the name that you’ll need to specify for your incoming and/or outgoing server in your account configuration. In some cases, this still won’t work https://www.msoutlook.info/question/613 when the certificate holds multiple names. You can then select the “Details” tab and see if the certificate holds a field called “Subject Alternative Name”. If so, then you’ll find other names that you could try behind the “DNS Name=” value. If none of those names work either, contact your ISP and ask for the correct name of the mail server that you should use. Another (less secure) alternative would be to disable the use of SSL for your mail account. No need to install the certificate As long as the name on the certificate doesn’t match the name specified in your account settings, you’ll get this warning message. Installing the certificate will not help in any way and isn’t needed either. The only case in which installing the certificate is needed, is when the names do match and the certificate isn’t issued (trusted) by a Certificate Authority. These are so called “Self-Signed Certificates”. In that case, only install the certificate if you trust the domain that is specified on the certificate and if the administrator responsible for that domain has instructed you to do so. Background information Many shared hosting solutions or ISPs are now offering secure access to your mailbox via Secure Sockets Layer (SSL). In order to make an SSL connection, a security certificate is required on the mail server
target principal name is incorrect Discussion in 'Microsoft Outlook' started by popowich, May 17, 2015. popowich EQ Forum Admin Staff Member Joined: Aug http://www.emailquestions.com/threads/microsoft-outlook-internet-security-warning-the-target-principal-name-is-incorrect.10827/ 12, 2008 Messages: 8,964 Likes Received: 118 Did you get the following error message from Microsoft Outlook? Internet Security Warning - The server you are connected to is using a security certificate that cannot be verified The most common reason for "The target principle name is incorrect" is due to the way many ISP's and hosting companies branded the email settings internet security for their customers. Often in the past email services would create in DNS and then tell customers to use names such as imap pop3 and mail.customerDomain.com instead of imap pop3 or mail.ISP.com. As these customers update their settings to use SSL enabled ports switching pop3 from 110 to 995 and imap from 143 to 993 they're getting an error because the name internet security warning on the certificate is the email service providers name and not their own. The fix is for these customers to use to the email services email settings such as mail.ISP.com instead of the branded settings using the names from within their own domain name. It's also possible the error was caused by the email service provider updating to a new company name on the same IP address instead of using a new IP address for the new server names. popowich, May 17, 2015 #1 (You must log in or sign up to reply here.) Show Ignored Content Want to reply or ask your own question? It only takes a minute to sign up (and it's free!). Click the orange sign up button to choose a username and then you can ask your own questions on the forum. Sign Up Now! Loading... Similar Threads - Microsoft Outlook Internet forced to use microsoft outlook at college Latest Questions, Aug 31, 2016, in forum: Microsoft Outlook Replies: 0 Views: 113 Latest Questions Aug 31, 2016 Microsoft Outlook issue jstump37, Oct 5, 2015, in forum: Help