Update #13: No, your sisterwives can't come to your job interview with you

Unless you have a co-author, YOUR name should be the only name in your email address.

HoneyAndSonnyButtonweazer@skinemax.com as an email address is great if you are BOTH the authors of the novel you're sending out to agents.

Otherwise, just you: Sundance Smith.
No Mrs. No Mr. No one else.

Having two names on the email is akin to having your spouse/s come along on a job interview.

You wouldn't do that would you?

Not unless you were interviewing at Harlequin.  Meet Mr. Shark: