Hi, have you ever got an email containing lots of email addresses including your own in the TO or CC field or somewhere else in the mail body?
I think, this happens for different reasons: - people sending emails to many recipients don't know or don't care how to do that properly - people dont' know abount BCC - people forgot to use BCC instead of CC - email/calendar programs like outlook/exchange send invitations without the senders interaction including all invitees in the to/cc as well as in the text/calendar mime-body part containung an icalendar event - people replying to all header recipients after receiving such mails I don't like that and have thought about a solution: - use a postfix serve as an outgoing smarthost - use header_checks to identify mails with to much CC/TO recipients - use body_checks to identify mails containing a text/calendar mime part - use a special transport <transport> to process these mails - use <transport>_destination_recipient_limit 1 in the postfix config to split the mail and process the mail one by one recipient - the deamon accepting the redirected mails will: - unpack the mail recursively - shorten CC and TO headers to the (single) recipient plus some maybe white listed recipients plus '....undisclosed recipients' - eventually remove tons of other useless mail headers (configurable) - unpack the ical part and remove all invitees but the current recipient - create a new ical part with only one single invitee - compose a new mail and send it to the current recipient feeding it back to postfix - I'm not sure, if it's necessary to split the mail, because the daemon could also unpack once and create many new mails out of it. I have to understand better how postfix's internal mail flow works exactly. Is this really a good idea? Is there anybody out there interested in it and want's to give it a try? I have sort of an alpha-version in perl running and would share it on gitlab after some additional work on it if somebody is looking for a solution like this and want's to discuss about or comment on it. \Magnus -- Dr. Magnus Harlander Mail: har...@harlan.de Web: www.harlan.de Stiftung: www.harlander-stiftung.de Ceterum censeo bitcoin esse delendam!
