Subbing right now, but can't take anything from my mail. Even if I am using the mailbox. So far this is with just one account. It was working fine yesterday.
If this is on Kaladim, then working as intended. If not, then you may need to file a customer service ticket.
Same problem here, on Skyfire. My Mailboxes are not full, tried zoning, using the actual mailbox, logging, etc. Problem for me has been going on for two days now. I get the same message....."You are unable to take gifts from messages at this time". These are items that have been sent between my toons before, without any problems until now.