I am running a local web server and exchange server. I use exchange to relay mail for whatever purpose. my mail servers however are hosted offsite.
my problem is I can not relay mail from my local exchange server to any address with my hosted domain name. so...
firstname.lastname@example.org will not relay internally if I use my exchange server.
currently I've the DNS records setup as such:
(A) mail.mydomain.com = ip of offsite mail server
(MX) mail.mydomain.com priority 10.
using my local dns server when I do an nslookup type mx on mydomain.com it comes up with the external mail server address... but I still can't get it to work.