I'm seeing a large number of emails in the Deferred queue. most/all have invalid from info on the headers (undefined/none...).
I checked Global settings and the check boxes under MTA, Protocol checks, and DNS checks were not checked. I reset them to ON, reloaded the page and they are still set.
I log out and back into Administrator console and they are cleared.
What is going on?
Can they be set from the CLI as user zimbra?