I am a little uncertain if this is the correct forum to post this, but here goes.

I know we can't send letters to people who are not on our friendlists. However, a while back a person on my friendlist decided to quit the game, and I believe he even deleted his character. So I removed him from my friend list. Today I got a letter in my mooglebox saying he was back, but I can't reply to that letter.

I'm not quite certain how he managed to send me that letter, but in any case; shouldn't I be able to reply to it...?