Originally posted by Bill Norrie:
... This is not the first time I have had problems with an AOL email address, when the email contains a perfectly legitimate attachment! (ZIP File)...

Too many providers have such limits nowadays.
A nice trick is to rename the extension from name.zip to i.e. name.file
and rename the file to .zip again when mail downloaded.
Also often a .rar (WinRar) files pass when .zip dont.

Good luck
Cheers 🥂
"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)