Error connection timed out 110 Can’t open SMTP stream in webmail

If you got below error when you try to sent mail through webmail means ,the possiblity is that firwall which installed on the server is not allowing the connections to the SMTP service.

ERROR: Message not sent. Server replied: Connection timed out 110 Can’t open SMTP stream.
 

If you have csf firewall on the server please check its configuration for the parameter“SMTP_BLOCK”, the configuration file is “/etc/csf/csf.conf” 

vim /etc/csf/csf.conf

If it is configured as like below

SMTP_BLOCK = “1″
 

It is enabled thereby it will block outgoing SMTP.
 

So change value 1 to 0

SMTP_BLOCK = “O”

And then check,  the mail will sent through webmail successfully.