[Plugin: Draft Notifier] Certain Email Addresses Work … Others Don't. Why … and How to Fix

I was so happy to have discovered this plugin and during initial testing with my gmail address, I was on pace to leave a 5 star rating once successfully implemented.

When switching from the gmail address to any address on our company’s two different domains, we are unable to get the messages to come through.

Thinking that it might have been a rule in SpamAssassin (enabled on our mail server), we disabled and tested again, but to no avail.

My gut feeling is that there is a rule setup that is preventing mail from being delivered to our domain(s) when the sender is ‘masked’ as an address on our domain(s).

Anyone else experiencing this? Found a resolution? Ideas?

Please do share ??