> On Dec 22, 2018, at 11:34 PM, Matt Saladna <m...@apisnetworks.com> wrote:
>
> I feared that. Are there any suitable sendmail wrappers that would provide
> equivalent functionality?
With Postfix, it suffices to set the "MAIL_CONFIG" environment
variable, which results in /usr/sbin/sendmail submitting mail
to a different Postfix instance, provided that instance allows
local submission. See MULTI_INSTANCE_README.
So the wrapper could be as simple as:
#! /bin/sh
export MAIL_CONFIG=/etc/postfix-foo
exec /usr/sbin/sendmail "$@"
provided you could get the PATH set appropriately in the various
"containers". If they must all run the same executable, and
a priori custom environment variables are not an option, then
you'll a wrapper than maps the caller's uid to a MAIL_CONFIG
setting.
You could of course then attempt to rewrite the message instead,
and forgo the multiple instances. Your call...
--
Viktor.
