Addressee unknown

EQ Admin

EQ Forum Admin
Staff member
Big Dan said:
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
SMTP error from remote mail server after RCPT TO:<>:
host []: 553 5.3.0 <>... Addressee unknown, relay=[]


This appears to be a standard user unknown error and not a blacklisting issue.

Are you sure the e-mail address was typed correctly?

If yes, and a second try fails..

I'd recommend calling the contact to get their current e-mail address, trying an alternate address, or if this is from a mailing list removing the invalid address from your list, whichever is most appropriate.


Big Dan

EQ Forum Moderator
Thanks Ray. I cannot believe I couldn't figure that out..I thought it didn't know who I (my IP) was..but addressee should have tipped me off!

I'll go in the corner with my dunce cap now. :D

EQ Admin

EQ Forum Admin
Staff member
No problem.

Sometimes the useful part of a bounce message is hidden inside lots of junk.

I have spent too much time looking at them over the years. :)