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: