Oops, sorry, "sender_dependent_relayhost_maps” should be
“sender_dependent_default_transport_maps” below...
> On Feb 23, 2022, at 2:17 AM, Charles Sprickman <c...@morefoo.com> wrote:
>
> Hi all,
>
> I’m having some issues figuring out if this is possible and then if so, how
> to approach it. This isn’t for production use, just some internal testing and
> experimentation...
>
> My goal is to set a relay destination based on the SASL username used for
> smtp authentication. So if I have users “testsmtp1”, “testsmtp2”,
> “testsmtp3”, I’d like to select the relay destination based on that username,
> NOT on the envelope From.
>
> I do have this version of it working, which does use the envelope From.
>
> In main.cf:
>
> # enable sasl auth
> smtpd_sasl_auth_enable = yes
> smtpd_sasl_security_options = noanonymous
> smtpd_sasl_authenticated_header = yes
>
> # map of sender to transport
> sender_dependent_relayhost_maps = hash:/usr/local/etc/postfix/relay_by_sender
>
> In the "relay_by_sender” map file:
>
> testsmtp1 qmqprelay1
> testsmtp2 qmqprelay2
> testsmtp3 qmqprelay3
>
> And in master.cf, the custom transports:
>
> qmqprelay1 unix - n n - - pipe size=250000
> user=qmqp argv=/usr/local/adm/bin/sendqmqp.pl 10.9.8.200:631 ${sender}
> ${recipient}
> qmqprelay2 unix - n n - - pipe size=250000
> user=qmqp argv=/usr/local/adm/bin/sendqmqp.pl 10.9.8.200:632 ${sender}
> ${recipient}
> qmqprelay3 unix - n n - - pipe size=250000
> user=qmqp argv=/usr/local/adm/bin/sendqmqp.pl 10.99.8.200:633 ${sender}
> ${recipient}
>
> In the above configuration, when I connect to relay using any of those
> accounts, there is no match and the default transport is used.
>
> If I add an entry to match the From address, that works fine, as expected.
>
> So can I do this, but use the SASL username?
>
> Thanks,
>
> Charles
