Developers of Sympa

[Olivier Salaün - CRU <address@concealed>]

Hi Sylvain,

Sylvain Amrani wrote:
> For lists from a particular family, I need to warn senders when a bounce 
> occurs.
>
> Anyone worked on this before ?
>   
We were requested this feature in the past but it was not coded.
Currently the only use for bounces in Sympa is to maintain a bounce 
score and trigger unsubscription of list members that have a high score.
> My first idea was to use MIME::Tools to recursively parse MIME::Entities in 
> the bounce, to find the original message and get its From: (and/or to add a 
> custom X-Sympa-Sender to messages of this family).
>
> Unfortunately, looking at the bounce in the spool, I see that the original List-Help, 
> List-Subscribe and List-Unsubscribe in the message attached to the bounce are set to 
> "sympa@fqdn" !!! Is that the correct behavior ? If so I've no way to be sure 
> I get the correct attachment.
>
> I didn't find in the source where List-* headers are changed in attachments.
>
> Any help in understanding this would be appreciated !
>   
If you wish to keep track of the user associated to each bounce, then 
you should activate VERP in Sympa. VERP stands for "Variable Envelop 
Return Path" and consists in setting a more significant return-path for 
each message. It implies that you give up Sympa bulk-emailer. Here is 
the related documentation : 
http://www.sympa.org/doc/html/node24.html#SECTION002410000000000000000

Then you'll have to patch bounced.pl to notify the message authors about 
bounces.
The problem is that the unique return-path that Sympa uses does not 
include the ID of the message, just the listname and the receipient 
email address. Here is what the return-path looks like : 
address@concealed

We'd like to include this feature in Sympa. Therefore please contact us 
for its design and submit the patch later.

Thanks.