Steerpike posted earlier about being careful with transferring gold between accounts. He also mentioned that several Guild leaders have been suspended for mailing their guild. I've first hand experience with this.
I'm the guild leader of the Tuatha member guild Relic. After the ClubGaiscioch in AvA last night I sent out a mail to the guys about the event and about registering on Gaiscioch for future events.. I also asked the guys to send me any screenshots they might have taken via facebook so that we could post them on our imgur gallery.
After I sent my mail I got kicked from the game and couldn't log in. I contacted customer support and they sent me this
Greetings!
Thank you for contacting The Elder Scrolls Online Team.
We're sorry to inform you that your account has been permanently deactivated for violating the Terms of Service of The Elder Scrolls Online. You will no longer have access to the game or forums. If you feel that this action has been taken in error, you are welcome to contact us at ESO_help@elderscrollsonline.com.
Thank you for your continued interest and support!
Warm Regards,
Joao B.
The Elder Scrolls Online Team
Of course I replied and said that of course I'd like an appeal. I forwarded him the mail that I sent out so that they could see it wasn't spam... but really, I just don't understand. Guild leaders sending mail to their guild is a normal thing in all mmos. I have always sent mail to my members... and now this.. I have spent the last four hours on hold with customer support.. I've gotten disconnected once and not spoken to any person. It has not been a good weekend.
Lesson here? Don't send mail. Do not send gold. Do not go afk in any dungeon. Do not do anything in this game that could be misconstrued into something it's not... no really.. I don't have a lesson. We should be able to send mail, send gold and go afk. My heart is heavy and I'm really bummed about this.
Here is a thread I made in the customer support forums if you want to show some support there (EDIT just no petitions that might get me in more trouble):
http://forums.elderscrollsonline.com/discussion/76378/suspended-for-mailing-guild
but really just.. I dunno. be careful in everything. I wouldnt' even send items to other players until they figure out what they are doing with the mail system.