Hello,
I want to check the domain of the (envelope) sender address if a user is
authenticated. Authenticated users are allowed to relay through
our mailgate but only if they use a local sender address. I'am at a loss
at the moment. The acl_smtp_auth ACL would be a nice place for doing
this, but the AUTH command could happend before the MAIL FROM command
appears, I think. Also I can't restrict everybody to local sender
adresses, cause I want receive mail from the internet from everyone for
our local users.
At the moment I got this acl:
------------
acl_check_rcpt:
deny local_parts = ^.*[@%!/|] : ^\\.
accept local_parts = postmaster
domains = +local_domains
require verify = sender/callout
require verify = recipient
accept domains = +relay_to_domains
accept authenticated = *
deny message = relay not permitted
---------
This seems to work fine but authenticated users can use every address
they like. How can I restrict them to local addresses (domains) ??
Every hint would be appreciated.
regards
oliver
