Email Bouncing AS SPAM AGAIN!!

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  • Updated 6 years ago

This conversation has been merged. Please reference the main conversation: How do I protect my domain's reputation?

Why are my emails now bouncing within my own domain as well as to other people I am sending to?

Received: from (LHLO
( by with LMTP; Mon, 16 Dec 2013
11:11:06 -0800 (PST)
Received: by (Postfix)
id CF39D58F0A9; Mon, 16 Dec 2013 11:11:01 -0800 (PST)
Date: Mon, 16 Dec 2013 11:11:01 -0800 (PST)
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;

This is a MIME-encapsulated message.

Content-Description: Notification
Content-Type: text/plain; charset=us-ascii

This is the mail system at host

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

(expanded from ): host[] said: 552 5.2.0 Spam Message Rejected -
ERR018 (in reply to end of DATA command)
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Posted 6 years ago

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Mike F., Alum

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Official Response
The error code: Spam Message Rejected - ERR018

Indicates there is something in the email that has been flagged as spam too many times and you are now being blocked. The first thing to check is the email address/domain. What domain name are you sending from?