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What Causes Mail To Be Flagged As Junk?

Posted on 2009-04-30
Medium Priority
Last Modified: 2013-12-09
How can I tell what rules/flags were tripped to cause an email message to be designated as junk and moved to my Junk E-mail folder?  I am using MS Outlook 2007.  Additionally, I have Symantec Brightmail in front of my Exchange server.  The email message has not been alter by Brightmail (subject prepended with SPAM:).  I'd like to understand the "rule" that MS Outlook executes when determining how to designate a message as SPAM.
Question by:artisit

Expert Comment

ID: 24276511
I think most of the mail agent is about the same on this matter...

First they will detect the host of the sender is it tally with the smtp header or something... Cos the email address can be altered easily but not the integrity of the host information. So let's say someone using a non secure mailing server to send you a mail, his domain is abc.com, but his email address is billgate@mircosoft.com. it will be classified as a spam.

Another issue is the content and title of the message, if they have a lot of "free", "sex" or any other obscene and ads relevant words, it will be more likely to be shifted to spam...
LVL 34

Expert Comment

ID: 24276604
Bulk mail / BCC (blind carbon copy) is What Causes Mail To Be Flagged As Junk.
LVL 15

Expert Comment

ID: 24277120

1) check this link on which keywords that would make the message flagged as junk:


2) See how outlook 2007 handles junk emails:


A Symantec Certified Specialist @ your service

Accepted Solution

artisit earned 0 total points
ID: 25339750
It would appear there is an issue with Outlook running in Cached Exchange Mode on a terminal services platform.  This is apparently the cause of the false positive junk message flagging.

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