[Pkg-exppsy-maintainers] Warning: message 1JJyme-0007hW-1C delayed 120 hours

[Mail Delivery System]

This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 120 hours on the queue on mail-gw.stofanet.dk.

The message identifier is:     1JJyme-0007hW-1C
The subject of the message is: January 78% OFF

The address to which the message has not yet been delivered is:

  pkge at x12.dk
    Delay reason: SMTP error from remote mail server after RCPT TO:<pkge at x12.dk>:
    host mail.x12.dk [86.52.208.51]: 450 4.1.1 <pkge at x12.dk>:
    Recipient address rejected: User unknown in local recipient table

No action is required on your part. Delivery attempts will continue for
some time, and this warning may be repeated at intervals if the message
remains undelivered. Eventually the mail delivery software will give up,
and when that happens, the message will be returned to you.