Originally Posted by
blahter
The thing to remember here is that Gmail is following the RFC specs for email messages.
There is a "Sender" field that has to be populated if you are not sending the email from the email in the "From" field.
I too find it annoying but that is how it is supposed to actually work.
I think that this is subject to interpretation. If I am the owner of two different domains and choose to send from both of them then there is no reason that the from and sender addresses need to be different, especially if inbound email replies all end up in the same mailbox.