Am 29.09.2014 um 14:53 schrieb Michael Wechner: > I have installed the package dovecot-postfix on Ubuntu 12.04 LTS: > > dovecot --version: 2.0.19 > postconf -d | grep version: 2.9.6 > > and receiving email works very fine, but relaying email does not work. > > I think the problem is that after STARTTLS the authentication is not > being executed > > 250-AUTH PLAIN > 250-AUTH=PLAIN > > which means using telnet returns
telnet is worthless because AUTH is likely announced *after STARTTLS* http://www.postfix.org/postconf.5.html#smtp_sasl_security_options > telnet mx2.wyona.com 587 > Trying 50.116.54.197... > Connected to node3.wyona.com. > Escape character is '^]'. > 220 node3.members.linode.com ESMTP Postfix (Ubuntu) oh my god, another server in the linode-zombie network that's bad neigbourhood and you should avoid a PTR ending with "members.linode.com" which is generic and here blocked because i have never seen any legit mail from Linode but 24 hours each day attacks or spam delivery attempts http://www.mxpolice.com/email-security/importance-of-ptr-records-for-reliable-mail-delivery/ > EHLO letscallitevil.com > 250-node3.members.linode.com > 250-PIPELINING > 250-SIZE 10240000 > 250-VRFY > 250-ETRN > 250-STARTTLS > 250-ENHANCEDSTATUSCODES > 250-8BITMIME > 250 DSN
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