I’ve had an issue with one of my email addresses recently. When I reply to all with my GMail address, it’s smart and does not send the email back to myself. On the other hand, when I sent an email from another address, it would include that address in the reply list. It finally got annoying enough to find a problem…
I found that the email address that was doing it was in fact “Not an alias”:
To fix it, I clicked the “edit info” link.
This opened a new window. I checked the “Treat as an alias” option.
Then, I clicked “Next Step” and proceeded to save the change. After that, when I reply, my address doesn’t get included.
One small annoyance gone!