How Do You Sign An Email?

I was writing an email to someone that I don't know. I came to the end and didn't know how to end. I couldn't just write my name. Sincerely, seems so old fashioned and un-email, but I meant every word that I had typed, so sincerely fit, it made sense. I worried after I sent it that it made me appear older or more formal than I am.

But, how else to sign off? I thought of how my husband signs his. They have his name and title. So mine would say, First and Last Name and underneath Mommy. Hmm. Not really the impression I want to give either.

Or how about xxx or ooo or xoxo? No, those won't do either.

Any suggestions?