Hello,
In the logs, there are cases where some message seems to be coming from=<>.
This seems to be happening when local Postfix returns some delivery
report to sender (sender delivery status notification).
In such cases PFLOGSUMM, instead of a domain name or full sender
address, displays in the stats "from=<>".
Here are some examples:
Host/Domain Summary: Messages Received
---------------------------------------
msg cnt bytes host/domain
-------- ------- -----------
...
1 1875 somehost.noa.gr
1 1850 from=<>
1 1806 chandler.mit.edu
...
Senders by message count
------------------------
...
44 us...@noa.gr
43 from=<>
42 us...@example.org
...
Senders by message size
-----------------------
...
1936k us...@example.gr
1724k from=<>
1633k us...@example.gr
...
Is it intended behavior? Or in such cases, pflogsumm could report using
some pre-set term e.g. localhost (or the server domain name) and
local-mailer@localhost (or even better the actual address used by
postfix when delivering reports - see below) respectively?
Note: In our system, I see that delivery notifications ("Successful Mail
Delivery Report") seem to be coming from:
Mail Delivery System <mailer-dae...@noa.gr>
Can I customize this in Postfix?
Thanks and best regards,
Nick
