New to exim and have not found this in the FAQs or online resources so far.
We have a machine with several domains. The MX record for these domains is pointed to a spam filter appliance. Alas, spammers don't play fair. They choose to connect directly to the IP address(es) of the domains on the box and still send their spam that way. While a firewall solution might seem the logical choice, it isn't here. The reason is that the users in each domain need to be able to see mail.abc.com or mail.xyz.com as their outgoing SMTP server which they relay through via SMTP auth. So, I need to know how to disable the ability to receive mail for local domains EXCEPT from a trusted source (the spam appliance box). Further, I need to allow SMTP AUTH clients to relay mail through their respective domains. A firewall simply shuts off all SMTP traffic including SMTP auth unless I know all the "trusted sources" which is basically moot given roaming customers. How can this be done? Also, it would be preferable to be able to do this on a domain by domain basis rather than server wide. If it can't be done that way, server wide is still better than what we have now. Thanks for any tips or advice you can offer. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
