As the junk and phishing emails came it was easy enough to create a rule for each one based on the FROM email, but often there would be multiple FROM addresses using the same domain and I didn't want to clutter up my rules with a bunch of specific conditions. I thought if I could do OR conditions on the FROM address I could minimize the number of rules. So I searched the web for a way to do rules with multiple OR conditions, but wasn't able to find any help.
Changing the rule condition from "FROM" to "KEYWORDS" and "SENDER ADDRESS INCLUDES":
helped but I was still limited to one condition without being able to use "or".
I discovered that multiple options can be added to the one condition and they are each treated as "OR" conditions. I also started blocking the entire domain instead of just the single email address:
I have not found a limit to the number of conditions allowed.
I'm sure this could be simplified using code, but this is good enough for me at this point.
I hope someone else finds this useful.