Re: conditionally add boilerplate in message with more than one recipient
Richard Laager <[email protected]>
| Newsgroups | gmane.mail.mimedefang |
|---|---|
| Message-ID | <[email protected]> |
On 09/21/2016 09:09 AM, Vieri Di Paola wrote: >> You can stream_by_recipient() so MIMEDefang resends the message for each >> recipient. In this way, your filter code can handle recipients >> differently. Note the warnings in the mimedefang-filter man page, though. > > The man page isn't too extensive on this. At a first glance it seems that calling stream_by_recipient in filter_begin does not trigger the code in filter_end, for instance. So if stream_by_recipient is true then only filter() is run? I don't use stream_by_recipient() and never have. Here's my understanding, though... If stream_by_recipient() returns false, there was only one user, so stream_by_recipient() did nothing and the filter runs as normal. If there are multiple recipients, then stream_by_recipient() resends the original message to each recipient individually, and your filter should terminate. You'll then see the new messages in separate invocations of your filter. >> Alternatively, you can do all the work yourself, and only selectively >> resend when necessary. This is what I do (not for boilerplate insertion, >> but other things). > > How do you do that? > Do you use resend_message()? (but that resends immediately the ORIGINAL message) Until a few weeks ago, yes. We were adding a header in some cases. So what we did was: if everyone wants the header, add it, and we're done. If some recipients want the header and some don't, resend the (original) message to those who *don't*, remove them with delete_recipient(), and add the header. So in your case, you would resent to [email protected], delete_recipient([email protected]), and then add the boilerplate. We're now doing more extensive modifications, so I have re-implemented resend_message() with my own code to modify the message as appropriate. -- Richard _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang