"Filter Incoming Emails by Domain" should check Envelope and From headers.

The Filter by Domain option is a really great way to stop spammers to deliver email to our servers.

Unfortunately it lacks a check on both the "Envelope" and the "From:" headers. Right now it seems it only checks for "Envelope" first and if doesn't match the spam is not blocked.

It will be great that when we add a domain into the "Filter Incoming Email by Domain" the script could check on both headers and if one of them is True, then the filter will block that email

As for now, it seems that the utility only checks on the "Envelope" and a lot of spammers pass by this as in the "Envelope" they could write anything and when the email is received, we see the "From" that is completely different.

Per example:

if I add a domain like "trashspam.com" into the Filter By Domains, but the Envelope does not contains that domain but instead it has the domain "amazonses.com" the filter will not work.

As my point of view, the "Filter by Domains" should check both headers and block the email if one of them is true.

Sergio