sgr@rotzorg.org said:
i've fiddeled around in Bouncer.py and added code to detect bounces created by exim.
It's a bit of a dirty hack, as it is my first attempt at python ;-)
I hate to criticise since I haven't got around to cutting code to do this and its great that you are working on this....
However I think that parsing the text of the exim bounces is the wrong way to go - exim provides a header on bounce messages to make this sort of function very easy. You will find that all bounce messages from an exim system will have an additional header:-
X-failed-recipients: fred@flintstone.com
Is there are multiple failed recipients, then they will look like this:-
X-failed-recipients: fred@flintstone.com, barney@rubble.com
You need to be slightly careful here though since a few mailers that feel it is their duty to rewrite things will munge multiple addresses onto a single line, so a general header address reading function should be used.
I guess the other thing that should be done to finish up the job is to detect exim delayed message warnings and ignore them. These have subjects such as:-
Warning: message 11SzEO-0004wH-00 delayed 24 hours
The best way to detect these is by a regexp on the subject.
If you are getting a lot of these messages then it may be worth sending a polite note to the admin of the system generating them suggesting that they set the following config item:-
delay_warning_condition = "
${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}"
This prevents exim sending out message delay warnings for messages with appropriate precedence header settings. This change is going to be made the default for future versions of exim, but currently unless the admin really knows what they are doing, most exim installations have their configs for this non-optimal. Documentation on this option can be found at
http://www.exim.org/exim-html-3.00/doc/html/spec_11.html#SEC186
I'll try and code this stuff up using my appalling python skills soon. I'll also attempt to add a mailman related section to the exim pages soon - if it doesn't appear, bug me!
Nigel.-- [ Nigel Metheringham Nigel.Metheringham@VData.co.uk ] [ Phone: +44 1423 850000 Fax +44 1423 858866 ]