Hi [me]. We are looking forward to celebrating Kevin's birthday with you. Please let me know what I can do to help. Maureen & Chuck
So I said:
I'm glad to hear that you and Chuck are ready to pitch in on Kevin's birthday...
Unfortunately, I don't have a Kevin, and I don't recognize your names
or e-mail either. So would you do both of us a favor and check with
*your* [my name] on her exact e-mail address? I'd hate for her to miss
out on you folks at the party.
What a nice person you must be! Thank you for letting me know that I goofed up on my e-mail. I could have been considered RUDE for not responding to the invite. Maureen