This is a query about how to have Postfix rewrite a From: address only
for messages sent to a particular destination address.
I've set my Postfix transport map so that most of my home email (From:
idal...@idallen.ca) goes out via my web host idallen.ca:
smtp:[idallen.ca]:submission
My College often throws idallen email into spam folders, so I have set
up a preceding transport map line that sends anything destined to my
College directly into the College with authentication:
mycollege.com smtp:[outlook.office365.com]:submission
In my mutt email client I created a send-hook that rewrites my From:
address to be the required address for my College (required for office365)
only for messages destined for my College. If not going to my College,
mutt leaves the From: address set to idal...@idallen.ca.
That's great for messages I send with mutt, but it doesn't fix the
From: address for messages to my College sent using any other method
(e.g. directly with sendmail or using Perl, etc.); those other methods
still have From: idal...@idallen.ca and they get rejected by office365.
How can I have Postfix rewrite my From: address *only* for messages
destined for my College, or for messages using the mycollege.com transport
line (same thing)? (Then I wouldn't need the mutt send-hook.)
Do I need to write my own "Postfix After-Queue Content Filter"
(http://www.postfix.org/FILTER_README.html) to do this?
--
| Ian! D. Allen, BA, MMath - idal...@idallen.ca - Ottawa, Ontario, Canada
| Home: www.idallen.com Contact Improvisation Dance: www.contactimprov.ca
| Former college professor (Free/Libre GNU+Linux) at: teaching.idallen.com
| Defend digital freedom: http://eff.org/ and have fun: http://fools.ca/
