Sometimes when we send an email if fails
- Remote Server at ABC.org.uk (2001:1420::25:4) returned '451-4.4.0 Primary target IP address responded with: "550-Global Policy Restriction: Dynamic IP Address - dyna.spamrats.com: 451-4.4.0 550-SPAMRATS IP Addresses See: http://www.spamrats.com/bl?81.X.Y.Z
451 4.4.0 550 (127.0.0.36)." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was 2001:1420::25:4:25'
I wonder if this is because the Exchange 2013 Server domain was migrated from SBS and has both a .local (internal)and .com domain (external)
When I look at the diagnostic within an email is states it is from the .local domain.
Received: from mail.domain.local (192.X.Y.Z)
Could this be the problem? How do I stop Exchange 2013 advertising as mail.domain.local and instead show mail.domain.com