Both our logins in Mail show the same email address -- should be different
We recently changed email providers.
Both our new emails end in "gmail.com." But we use different names/addresses/signatures. I am the main login to the computer and the wrong address shows up exclusively only when my wife sends out a message (though not consistently!). Mail handles both the addresses I myself use (iCloud.com as well as Gmail) with no problems. Howcum? How can I fix this? (FYI: There was no problem with our previous email addresses, before the change.)
And further to the topic of Mail: often, Mail locks up and I have to Force Quit to get back to work with Mail.
And there's another peculiar habit it has picked up. After I select some old emails, right click and ask the machine to Send to Trash . . . it sometimes says it can't. "Could not be moved to Trash." Doesn't tell me why, though.
This is not on a level with solving the Ebola crisis. But I sure would like to get it under control.
Thanks for any help you may have.