On Thu, Jan 28, 2021 at 04:51:13PM +0100, Gerben Wierda wrote:
> I have an alias that I use for a certain external web site. Mail sent
> to that alias ends up in my mailbox.
>
> Is it possible in some way to have — for mail sent to that domain only
> — to have a canonical rewrite of the from/sender address?
Yes, at the cost of a dedicated transport whose master.cf entry contains
an override for smtp_generic_maps:
master.cf:
mycanon unix ... smtp
-o smtp_generic_maps=$mycanon_generic_maps
main.cf:
transport_maps = inline:{ {example.com = mycanon:} }
mycanon_generic_maps = inline:{ { @$myorigin = myal...@mydomain.net } }
--
Viktor.
