Can anyone explain why I keep getting this message?

"Your email acccount has returned 4 invalid response(s) to emails sent by
the Glider Pilot Network and as a result your email address is now in the
queue to be deleted from the Email Directory.

If any subsequent emails "bounce" within the next 24 hours then your listing
in the Email Directory will be permanently deleted, if not, your account
will function normally (which should be the case if you receive this email).

If you are aware of the reason behind your account "bouncing" and wish
to be removed from the deletion queue then send a blank email from this
account to ."

I have been logged off twice now and had to re-register - which is a pain.
What do I do about this?



All the best,

Tom Hollings.