Return Receipt function not working
My outgoing mail does not ask for a Return Receipt, (tested several recipients), even tho the receipt option is checked. It works fine for my 2nd e address with the same settings as far as I can see, but not for my main address. Any ideas?
Alla svar (1)
Return receipt is not supported by all email providers, so it's difficult to track the issue. This URL may provide some info on the topic: https://support.mozilla.org/en-US/questions/1272022