No One is Receiving My Emails and Many Return to Me


New Email
1 copy of what I have received:

----- Forwarded message from Mail Delivery System <> -----
Return-Path: <>
Received: from ( [])
by (Cyrus v2.3.7-Invoca-RPM-2.3.7-7.el5_4.3) with LMTPA;
Thu, 09 Dec 2010 21:59:51 +0000
X-Sieve: CMU Sieve 2.3
Received: by (Postfix)
id 764EBBED18; Thu, 9 Dec 2010 21:59:51 +0000 (UTC)
Date: Thu, 9 Dec 2010 21:59:51 +0000 (UTC)
From: (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
Message-Id: <>

This is an automatically generated email created by

The email account that you tried to reach does not exist. Please
double-check the recipient's email address for errors and try again.

<>: host[] said: 550 Requested
action not taken: mailbox unavailable (in reply to RCPT TO command)

Another email I received:
From: Mail Delivery System <> Add contact
Date: Thu, 09 Dec 2010 11:36:03 -0500
This message is not encrypted, and is not digitally signed by . THESE ARE A BUNCH OF ATTACHMENTS OF GIFS FROM THIS WEBSITE, I BELIEVE And I was instructed lower down to imput a code if I wanted to see the message. When I did that I received a message I had sent to someone else.
Please help!

EQ Admin

EQ Forum Admin
Staff member

The error message in the bounce that you received is :

<>: host[] said: 550 Requested action not taken: mailbox unavailable

This is a generic error. It does not specifically state they are over quota, their account has been suspended, or any other information except that it's a 5xx level smtp code which means Hotmail does not want you to try sending that account email again.

If you are sure it's a good email address, and you are trying to send them several GIF files, try putting them into a zip file and attaching that file to the email instead of sending them several GIF's which could possibly be triggering a spam filter.

:welcome: to Email Questions!