EXIM does not send e-mail

[SAW9B3]

Faced with the problem of EXIM

For a long time, with a mail client did not have any problems but everything changed in one morning.

Now I can only receive messages
that's what comes to my email

Mail delivery failed: returning message to sender
retry time not reached for any host after a long failure period
Received: from localhost ([127.0.0.1] helo=mail.********

OR

retry timeout exceeded
Received: from [10.0.1.190] (<--- my pc router inside local network) (helo=DESKTOP********)

Mostly second one

How to solve this problem?

Thank you