NethServer Version: 7.9.2009
I try to setup an IMAP connection using MS Outlook from several remote sites to a central nethserver. It works except one thing:
Outlook shows the message “target principal name is incorrect”. I can see the self-signed certificate from the Nethserver, can install it, but it does not help. I always have to confirm twice by clicking on “Yes” to finally get the connection from Outlook to nethserver.
Solution 2 that I tried: setup a record in the hosts file on the client:
The hostname is exactly the name on the certificate from Nethserver. I can use the FQDN hostname in the Outlook settings to access the mailbox, but the message still appears.
Does not work either.
Solution 3 that I tried: found a registry entry called “SuppressNameChecks”, but that is only for the certificate checking of incoming signed or encrypted e-mail.
Solution 4: Use Thunderbird. That one works fine, I can add an exception and that’s it… the problem is: the customer doesn’t want that.
Does anyone have a real solution? How can I configure the client with MS Outlook, so that the message does not appear any more?
Thanks in advance and best regards,