Postfix aliases

Question

I have a question. Is it possible to configure postfix aliases to retrieve them from an external script?

alias_maps = /path/to/pythons_script.py

or

alias_maps = /path/to/script.sh

EDIT (based on autor's comments):

Aliases should be sender dependent.

Do you want service queries about aliases by postfix in real time? — AnFi, Mar 09 '14 at 11:55
exactly, this postfix server won't send many emails. I need to do some extra thing when Postfix forward emails. — infernox, Mar 09 '14 at 13:34

score 1 · Answer 1 · answered Mar 09 '14 at 14:38

1

You may configure postfix to query your python daemon about aliases using socketmap protocol.

http://www.postfix.org/postconf.5.html#alias_database
http://www.postfix.org/DATABASE_README.html#types

There are a few implementation of socketmap daemons in python e.g. pysrs.

Socket map protocol has beeb introduced by sendmail. It is very simple:
http://www.postfix.org/socketmap_table.5.html

Postfix also supports another protocol but it is postix specific:
http://www.postfix.org/tcp_table.5.html

answered Mar 09 '14 at 14:38

AnFi

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tcp lookup method is great for me, but it doesn't matter because postfix gives only recipient email, I need also sender email. :( – infernox Mar 09 '14 at 17:37
Add additional requirements to your query after "**EDIT:**" line. Aliases are not sender depended. – AnFi Mar 09 '14 at 18:22
:( I think that I don't understand how I should it do – infernox Mar 10 '14 at 12:00
I have added it - it should be visible after review/moderation (You reputation score may be to low to do it yourself). – AnFi Mar 10 '14 at 12:52

score 0 · Answer 2 · answered Mar 09 '14 at 10:26

0

AFAIK it is not possible. You can use mysql table instead and insert data into mysql with your own script

answered Mar 09 '14 at 10:26

ALex_hha

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score 0 · Answer 3 · answered Mar 10 '14 at 22:45

Postfix knows a lot of lookup tables: http://www.postfix.org/DATABASE_README.html

But a lookup tables like exec:/path/scriptname isn't between them, although it weren't too hard to develop one. In your place I generated a text table with the script and called then 'postmap' for it.

Postfix aliases

3 Answers3