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Hi Harald
Thanks very much for your quick reply. Please see my answers inline below
Am 29.09.14 15:01, schrieb Reindl Harald:
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
right, but when requesting for example mail.wyona.com, then I can see AUTH
telnet mail.wyona.com 587 Trying 195.226.6.75... Connected to mx1.wyona.com. Escape character is '^]'. 220 mail.wyona.com ESMTP Postfix (Ubuntu) EHLO wyona.com 250-mail.wyona.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN 250-AUTH=PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host.
or also when using ngrep
T 195.226.6.75:587 -> 10.10.1.102:58990 [AP] 250-mail.wyona.com..250-PIPELINING..250-SIZE 10240000..250-VRFY..250-ETRN..250-STARTTLS..250-AUTH PLAIN..250-AUTH=PLAIN..250-ENHANCEDSTATUSCODES. .250-8BITMIME..250 DSN..
hence I would assume to see it also for the new version of postfix and dovecot, or do I misunderstand something?
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-reliabl...
thanks for pointing this out. I have set it now according to
https://www.linode.com/docs/networking/dns/adding-dns-records/
and it should work within the next 24 hours (at least that's what linode says).
Thanks
Michael
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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