dovecot not working properly

I have installed ispconfig 3 on a ubuntu 14.04 system. Works very fine, only my mail does not. I can send and recieve mails from localhost (squirrelmail and mails from ispconfig). When I want to recieve mails outside the system it doesnt work.
that is working now:
recieve Mails from localhost
recieve mails from localhost outside the system (Thunderbird)
write mails from localhost to other mail adress

thats not working:
recieve Mails from outside localhost
send mails from Thunderbird

Thanks for help

 

Hi till,
Its in a datacenter hmm seems to ISP maybe.

 

I found somthing is wrong in my opinion. sasl isn't run too.
output from mail.log when im trying to sent email to external email:

Code:

Aug 17 17:09:22 euve78719 postfix/smtpd[11744]: connect from localhost.localdomain[127.0.0.1]
Aug 17 17:09:23 euve78719 postfix/smtpd[11744]: 736B1B64597: client=localhost.localdomain[127.0.0.1]
Aug 17 17:09:23 euve78719 postfix/cleanup[11750]: 736B1B64597: message-id=<[email protected]>
Aug 17 17:09:23 euve78719 postfix/qmgr[1867]: 736B1B64597: from=<[email protected]>, size=791, nrcpt=1 (queue active)
Aug 17 17:09:23 euve78719 postfix/smtpd[11744]: disconnect from localhost.localdomain[127.0.0.1]
Aug 17 17:09:41 euve78719 postfix/smtpd[11760]: connect from localhost.localdomain[127.0.0.1]
Aug 17 17:09:41 euve78719 postfix/smtpd[11760]: CE3EAB64602: client=localhost.localdomain[127.0.0.1]
Aug 17 17:09:41 euve78719 postfix/cleanup[11750]: CE3EAB64602: message-id=<[email protected]>
Aug 17 17:09:41 euve78719 postfix/qmgr[1867]: CE3EAB64602: from=<[email protected]>, size=1302, nrcpt=1 (queue active)
Aug 17 17:09:43 euve78719 amavis[1516]: (01516-01) Passed CLEAN {RelayedOutbound}, LOCAL [127.0.0.1]:59022 [109.43.1.113] <[email protected]> -> <[email protected]>, Queue-ID: 736B1B64597, Message-ID: <[email protected]>, mail_id: PRxa8gyAgFJM, Hits: -0.999, size: 791, queued_as: CE3EAB64602, 18171 ms
Aug 17 17:09:43 euve78719 postfix/smtp[11751]: 736B1B64597: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=20, delays=0.53/0.03/6.2/13, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as CE3EAB64602)
Aug 17 17:09:43 euve78719 postfix/qmgr[1867]: 736B1B64597: removed
Aug 17 17:09:43 euve78719 postfix/smtp[11761]: CE3EAB64602: to=<[email protected]>, relay=gmail-smtp-in.l.google.com[173.194.207.27]:25, delay=2.1, delays=0.11/0.01/1/0.97, dsn=2.0.0, status=sent (250 2.0.0 OK 1439824183 66si7018336qhf.9 - gsmtp)
Aug 17 17:09:43 euve78719 postfix/qmgr[1867]: CE3EAB64602: removed
Aug 17 17:10:01 euve78719 postfix/smtpd[11744]: connect from localhost.localdomain[127.0.0.1]
Aug 17 17:10:01 euve78719 postfix/smtpd[11744]: lost connection after CONNECT from localhost.localdomain[127.0.0.1]
Aug 17 17:10:01 euve78719 postfix/smtpd[11744]: disconnect from localhost.localdomain[127.0.0.1]

 

ah and i have reset my mysql pw to a new one maybe thats the problem?

 

so im an idiot i have set the configuration to only localhost. Reconfigure postfix will solve this very quickly