>From the FAQ:
7.31 What does the UNIX error message: TLS/SSL failure: myserver:
self-signed certificate mean?
7.32 What does the PC error message: TLS/SSL failure: myserver:
Self-signed certificate or untrusted authority mean?
An SSL or TLS session encryption failed because your server's
certificate is "self-signed"; that is, it is not signed by any
Certificate Authority (CA) and thus can not be validated. A
CA-signed certificate costs money, and some smaller sites
either don't want to pay for it or haven't gotten one yet. The
bad part about this is that this means there is no guarantee
that the server is really the system you think that it is.
Use the /novalidate-cert option in the mailbox name to disable
validation of the certificate.
