Charles Sprickman:
> Oops, sorry, "sender_dependent_relayhost_maps" should be
> "sender_dependent_default_transport_maps" below...
In both cases the lookup is by sender email address, not SASL login.
And that is the documented behavior.
There is a different appoach, and that is to use the "filter" feature.
/etc/postfix/main.cf:
... check_sasl_access /etc/postfix/sasl_access ...
/etc/postfix/sasl_access
user1: filter relay1:
user2: filter relay2:
This usage is officially supported for remote deliveries.
Wietse