The intent is that a "Reply To" address field on an e-mail would cause recipients to reply automatically via a ProtonMail alias address if specified by the sender. This way, the sender is more assured that the recipient will actually respond to the alias being supplied by the sender and not simply to the senders actual originating address field.
MEA
The intent is that a "Reply To" address field on an e-mail would cause recipients to reply automatically via a ProtonMail alias address if specified by the sender. This way, the sender is more assured that the recipient will actually respond to the alias being supplied by the sender and not simply to the senders actual originating address field.