111 Can't open SMTP stream

[NetX]

When the users try to send email messages with Squirrelmail, they see this error:

111 Can't open SMTP stream.

I checked cpnel services, imap, exim an all is ok.

Any ideas?

Thanks..

 

[NetX]

some help?

 

[darkkouta]

verified the rules of firewall?

 

[AndyReed]

111 Can't open SMTP stream.

I checked cpnel services, imap, exim an all is ok.

Make sure that configured SMTP is open and not blocked by your firewall settings.

 

[NetX]

Thanks a lot for your help.

You were right, the problem was the SMTP Tweak Security.