Well, Viktor was talking about those: smtp_tls_security_level = encrypt -or- secure smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
and my question was about those as well. You may read it once again since you have this one set: smtp_tls_security_level = may and I think it's not the same for smtp as it works for me with 'may', but it's quite different with encrypt or secure. -- View this message in context: http://postfix.1071664.n5.nabble.com/Postfix-cannot-start-tls-handshake-failure-tp89684p89733.html Sent from the Postfix Users mailing list archive at Nabble.com.