09-26-2014 11:41 AM
Hey guys,
Philosphical question, which I honestly didn't think I'd have to ask...
Do you block messages from servers that fail reverse DNS lookup (eg no pointer record or non matching pointer record)?
We recently tightened things up, and put those in the blacklist, and I'm seeing more legit senders getting dropped than I expected.
Am I expecting too much?
Ken