Jump to content

Outlook 360 sent mail rejected


Recommended Posts

Hello,  a couple of our users are having their emails rejected to a few of our clients.  I don't really believe that ESET is messing with our emails as they depart, but I'm hoping that someone has a solution.

Many of the rejection emails include something like this:

Quote

 

Subject: [SPAM] Mail System Error - Returned Mail with Subject: 327128

 

This Message was undeliverable due to the following reason:

 

Your message was not delivered because the destination computer refused to accept it (the error message is reproduced below).  This type of error is usually due to a mis-configured account or mail delivery system on the destination computer; however, it could be caused by your message since some mail systems refuse messages with invalid header information, or if they are too large.

 

Your message was rejected by gmail-smtp-in.l.google.com for the following reason:

 

     5.7.1 [65.20.48.74] Our system has detected that this message is not RFC

     5.7.1 5322 compliant: duplicate headers. To reduce the amount of spam sent

     5.7.1 to Gmail, this message has been blocked. Please review

     5.7.1  RFC 5322 specifications for more information. y5-20020a814b05000000b00354927dfb3fsi16628844ywa.50 - gsmtp The following attachments have been removed from the bounce message: 327128 MARTINEZ REVISED 2.jpg

 

Link to comment
Share on other sites

  • Administrators

The email is not recognized as spam by ESET Antispam. It appears that the misdetection has been resolved in the mean time.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...