Mail preference rule is failing to forward email
A couple of weeks ago I set up a rule in Mail preferences to forward email from a particular sender to my husband's email account. Though I've gotten at least half a dozen email from that sender none have been forwarded. I end up forwarding them manually and he gets those.
I have other rules that move mail to different mailboxes on my computer and those work fine.
I've double, triple, quadruple checked his email address is correct and that the sender email address is correct.
We both have Macs. I'm running OS 10.15.7
Can anybody help me figure this out? I'd love to have it work.
(PS Before I can post this Apple requires I choose a topic. Mail is not on the list. Thanks Apple. Because I couldn't come up with anything better from the list I picked Apple ID but it has nothing to do with my problem.)
MacBook Pro