I am chuckling because I just read an e-mail addressed to "Amy," and over the years, in fact at least monthly I am called Amy, Amber or Angie. Probably Amber more than any other name. I'd love to be mistaken for an Amelia (I like that name) or even Audry or Abigail, but no, Amber and Amy are the most frequent substitutions.
Typically, I don't mind. It's not easy to remember peoples' names, and personally I have a real problem remembering names myself. It's just that I was feeling particularly anonymous lately so when someone responds to the wrong name in writing when the sending email address is firstname.lastname@example.org it leaves one feeling rather invisible. I actually had a customer I've been working with for four months call me Amy in an email last week, so this is a great start to my birthday month.
Still, I know it happens all the time. One of the kids' teachers called Jim Jeff last week. What are your unintentional pseudenyms? Tell me, I really want to know! Let's feel less invisible together! Share your joy!