[Dovecot] TLS Issue

[Leander S.]

Hi,

I use Postfix & Dovecot with TLS / SSL - it authenticates / works fine - 
except I'm always getting this ugly SSL cert warning messages mit MTAs.
It says that the following:


"You have attempted to establish a connection with "server". However, 
the security certificate presented belongs to "*.server". It is 
possible, though unlikely, that someone may be trying to intercept your 
communication with this web site."


Is there a serverside solution that I wont get that any more? Why is * 
as a wildcard not working? Iwonder How gMail or other providers solve 
that issue


Regards