Hello postfix-users,
I run pf 3.10-20250107 on ubuntu 24.04.
I use sender_bcc_maps and recipient_bcc_maps with pcre: mapping. The files are
simple.
However, I am puzzled by some behaviour of postfix that doesn't fit my
expectation somehow.
In my main.cf the corresponding directives are
---8<---
always_bcc =
recipient_bcc_maps = pcre:$meta_directory/administrator_recipient_bcc.pcre
sender_bcc_maps = pcre:$meta_directory/administrator_sender_bcc.pcre
lmtp_destination_recipient_limit = 1
---8<---
Some recipient on my machine receives emails from some firewall, where the
sender email is more or less
/^spalertd@.*$/ ignorethis
I do not want a copy of mails from those senders. Therefore I have added it to
the
sender_bcc_maps-File (expression as above). (ignorethis is an alias for |cat >
/dev/null).
However, I still get copies of those emails.
Why?
When I do
root@butterfly:/etc/postfix# echo spale...@xyz.com | postmap -q -
pcre:/etc/postfix/administrator_sender_bcc.pcre
spale...@xyz.com ignorethis
So in theory, it should NOT deliver a bcc copy. Right?
When looking at the
https://www.postfix.org/postconf.5.html
manual entries for sender_bcc_maps and recipient_bcc_maps, both have in common
they get evaluated when an external email enters postfix.
This applies to the spale...@xyz.com mails.
I do not have spalertd@ in recipient_bcc_maps.
Now the funny thought to my question. Does the ORDER of the main.cf directives
play a role?
Hm, no, it doesn't.
Where is my mental mistake?
Thanks for pointing out solutions.
Florian
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