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Cannot send e-mail from webmail

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Joined: 7 months ago
Posts: 48
Topic starter  

If I send an email from the webmail, then it looks like if the mail is sent. But looking closer to the /var/log/carbonio.log I got a connection timeout.

Nov 14 13:12:23 mail postfix/smtp[1092948]: BD85250005B: to=<max@*****.nl>, relay=none, delay=3377, delays=3317/0.01/60/0, dsn=4.4.1, status=deferred (connect to mails.******.nl[185.**.**.**]:25: Connection timed out)

I tried to send to different users but for all the other mails I got the same message.

Everything looks ok. Tried to telnet to external mailservers port 25 will also get a connection timeout. Firewall looks ok.


zextras@mail:/var/log$ zmcontrol status
Host mail.********.nl
amavis Running
antispam Running
antivirus Running
directory-server Running
mailbox Running
memcached Running
mta Running
opendkim Running
proxy Running
service webapp Running
service-discover Running
stats Running
config service Running



Joined: 12 months ago
Posts: 309

It looks like your outbound through port 25 is restricted.

You may test using

telnet 25




Joined: 7 months ago
Posts: 48
Topic starter  

@anahuac You are right. Same issue


So I had a look at support... and this is what I found. Thanks Anahuac. 

Blocked by default

You may request these blocks be removed by opening a support ticket

  • TCP port 25 (SMTP)


anahuac reacted