I'm having problems getting my primary mail server (running v3.22) to
accept error messages from my backup servers.
The message reported in the rejectlog file is :
there is no valid sender in any header line (envelope sender is <>)
Even though the message contains :
From: Mail Delivery System <Mailer-Daemon@???>
I have the following options set in the config file :
headers_check_syntax
headers_sender_verify_errmsg
sender_verify
And the backup server negated in the sender_verify_hosts list.
I've even added Mailer-Daemon to an alias file which is used for sender
verification.
Can anyone help?
--Terry
