The sent letters do not come to the addressee.

[zondar]

Office messages and the sent letters do not come from any created e-mail to the addressee. Incoming messages on created the mail account come to CWP without problems.
Here it messages are in Postfix Mail Queue:
(connect to alt2.gmail-smtp-in.l.google.com[2404:6800:4003:c03::1b]:25: Network is unreachable)
or
(connect to alt2.gmail-smtp-in.l.google.com[74.125.24.27]:25: Connection timed out)

How it is possible to correct it? Thanks in advance. Excuse for my English