Autor: Warren Data: A: exim-users Assumpte: [exim] Accepting mail for remote networks
Hi
I currently have a layer 4 transparent redirection of all MX mail whose
MX's belong to a particular network (eg 1.1.1.0/24), redirected to our
Exim servers.
So any domains whose MX records have its A records in 1.1.1.0/24 will be
relayed for.
The reason for this is that i do not know what domains our exim servers
will be relaying for but i do know the remote network - which we control.
I am currently doing this check in the Rcpt To ACL by checking the MX
record for the remote recipient domain and then the A record, using dnsdb.
I then have a condition which basically checks to to see if the resolved
IP is in the remote network and denys or allows the mail appropriately.