Yahooguntu:
14:51:13 : imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read client hello A [127.0.0.1]
not a bug.sslv3 and tlsv1.0 are not very different. programmers usually shared large portions of code.
Remember: sslv3 and tls1.0 are 15 years old... it's common not only to dovecot that debug logs say ssl3 where tls1 is talked. But: only for debug messages.
