Tommy Phipps wrote:
> Our company is receiving spoofed emails using our domain name along with
> many combinations of user names.
>
> I'm wondering if Exim can be set up to detect these spoofed messages to keep
> them from being passed to Exchange.
>
> Thanks in advance for your help.
>
Perhaps you could just block emails from yourdomain if they don't come
from your internal range.
A rule like this one should do it.
deny
!hosts = : +relay_from_hosts
sender_domains = +local_domains
message = You are not authenticated
