Smarthost - Network Unreachable

[ackmann]

Hello,

I have a problem using PMG via smarthost for outgoing mails. When I use authenticated smarthost the mail isnn't able to send.
I get this error:

Sep 28 14:12:42 antispam postfix/qmgr[59286]: 1C3BD1408B7: removed
Sep 28 14:13:12 antispam postfix/smtp[59300]: 27F7B14117F: to=<xx.xx@xx.com>, relay=none, delay=30, delays=0/0.02/30/0, dsn=4.4.1, status=deferred (connect to smtp.xx-xx.de[134.x9.2xx.x9]:25: Connection timed out)
Sep 28 14:13:45 antispam postfix/qmgr[59521]: 27F7B14117F: from=<xx@xx-xx.de>, size=2185, nrcpt=1 (queue active)

My config looks like this:

/etc/postfix/relay_passwd

[smtp.xx-xx.de]:25 smarthost@xx-xx.de:xxxxx

Part of main.cf

relayhost = smtp.xx-xx.de:25
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/relay_passwd
smtp_sasl_security_options =

You guys have any suggestions?

Greetings from germany.

 

[Stoiko Ivanov]

seems the problem is a network issue connecting to the smarthost:

smtp.xx-xx.de[134.x9.2xx.x9]:25: Connection timed out

can you ping the smarthost? - can you connect to port 25 on it?
(sometimes relaying with smtpauth is only possible on port 587)

 

[ackmann]

Via telnet I get connection to the smarthost on port 25.
The webspace says the smtp server via ssl hears on port 465, but on this port it don't works too, and via telnet I even get no connection on port 465

 

[Stoiko Ivanov]

does the host smtp.xx-xx.de always resolv to the same IP-address? (134.x9.2xx.x9)
else it's always possible that it was simply not reachable at the time PMG tried to forward the mail...

 

[ackmann]

Yes, the smtp server is always reachable on this address.