Oleksii Krykun:
> If user requests return receipt he receive delivery report about amavis only.
>
> This is the mail system at host xxx.
>
> Your message was successfully delivered to the destination(s) listed below.
> If the message was delivered to mailbox you will receive no further
> notifications. Otherwise you may still receive notifications of mail delivery
> errors from other systems.
>
> The mail system
>
> <u...@xxx.xxx>: delivery via 127.0.0.1[127.0.0.1]:10024: 250 2.0.0 from
> MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 27A9E3B4C49
>
>
> Is it possible to exclude this report but have report about real message
> delivery?
This means that the "before filter" Postfix SMTP client does not
receive a DSN service announcement in the SMTP EHLO response from
the content filter (your main.cf and master.cf show no evidence
that you have told Postfix not to send or receive that).
You would need to check with amavis how to enable that.
Wietse
