[Dovecot] Multiple ssl certificates

Hello,

I wonder if there is some possibility to force dovecot to use more than one ssl certificate. I would like to use a few certficates: one per IP We are hosting many different domains and I had to use stunnel to ensure encrypted connection for our clients using different certificates. But stunnel isn't a good solution and sometimes I need to restart stunnels because of some of it's processes hangs - after some improvements like setting ulimit it is better now but still it is not a permanent soulution.

I would like to use is:

1.1.1.1 - certificate nr1 2.2.2.2 - certificate nr2 .....

Any suggestion?