I have a server with iredmail configured and I can't send email. I receive that message in postfix log:

00C3CC04FA: to=jeanpierre.carvalho@solfut.com, relay=none, delay=4797, delays=4766/0.04/30/0, dsn=4.4.1, status=deferred (connect to mail.solfut.com[]:25: Connection timed out)

With Gmail happens the same.


  • There's no recipient : to=. Edit your post to explain how you send mails – Gilles Quenot Mar 17 '18 at 14:37
  • Copy Error --' i edited. – Jean-Pierre Carvalho Mar 17 '18 at 14:39
  • If you do in a shell : echo | telnet mail.solfut.com 25 what is the output ? – Gilles Quenot Mar 17 '18 at 14:41
  • Its: Trying and for google: Trying – Jean-Pierre Carvalho Mar 17 '18 at 14:44

When you test the remote mail server with

echo | telnet mail.solfut.com 25

you should get Connected to mail.solfut.com.

If not, then you have a 'simple network issue'.

Try to disable your firewall (or better allow outcoming port TCP 25) in your firewall.

  • Its a google problem but i cant fix that.. :( – Jean-Pierre Carvalho Mar 17 '18 at 15:04
  • 2
    Blocked traffic Google Compute Engine blocks or restricts traffic through all of the following ports/protocols between the Internet and virtual machines, as well as between two virtual machines when traffic is addressed to their public IP addresses (this also includes load-balanced addresses). – Jean-Pierre Carvalho Mar 17 '18 at 15:04

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