Sandro Tosi wrote: > Hi, *trimmed* - portion previously responded to...
> indeed, but why disable headers changes in user filters? > As said, I've never needed system OR user filters, so have ignored that portion of the docs.. that said .. a 'SWAG' .. To the extent the message is already in the queue, in Exim's usual two-part storage (headers, acl_m's and other stuff in one file, body & attachments in another), a 'system' filter would have been able to action header changes for 'all hands', and before a queue-runner onpasses the result to router/transport sets to effect final delivery. Headers on all copies will be alike, and that is expected and OK. A 'user' filter, OTOH, cannot safely alter the one-and-only copy in queue, w/o (potentially) affecting what will be handed-off to OTHER users. Router/transports, OTOH, CAN handle per-user header mods, because local deliveries, moving a *copy* of the message from queue to mailstore, are done one recipient at a time. SO 'easy' out is to use a system filter AND limit arrivals to one recipient at a time - truning it into a de facto 'user' filter. But if one is gong to bend or break the '100 minimum' RFC, one might as well not bother with a filter, and JFDI in acl's. There's another workaround that can avoid that friction w/o limiting arrivals at all: At acl_smtp_recpt, *concatenate* the user prefs into one single acl_m variable, adding each USERID and pref set as each RCPT_TO is traversed. In your router/transport sets (ELSE a user filter), for each $local_part being delivered, parse that acl_m picking out the matching user's prefs. And action accordingly. NB: IF you are going to run an SQL animal *anyway* it is even easier to just pull the prefs [again | only] from the DB when traversing router/transport sets. Neither a system, nor user filter nor even an acl_m needed. YMMV, but once an SQL engine has been interfaced to Exim, one might as well use it. Bill -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
