after i installed whm, i can not send email, how to set whm so i can send email

Posted September 25, 2017 1.8k views

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
all hosts for ‘’ have been failing for a long time (and retry time not reached)

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2 answers

Does telnetting to the gmail SMTP server over port 25 work?

I do not know, what port is used
I just sent an email and got that information