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Weird spam issues - 11.Jan.2005 9:33:00 PM

bigdummy

Posts: 39
Joined: 11.Jan.2005
From: Dallas Texas
Status: offline

We use Symantec Antivirus for Exchange, and I configured the spam filter to deliver email it identifies as spam, to a special administrators mailbox I set up, instead of deleting the mail it identifies as spam. This way, I can look at all the �spam� email to make sure there are no false positives, and I can then deliver them to the intended recipient if I do find a false positive. I�ve noticed something lately in the spam mail that has me thoroughly confused;

Although most of the spam is addressed to real Active Directory recipients �@mydomain.com� �some of the spam is addressed to recipients that don�t even exist in my Active Directory, and don�t have mailboxes on my Exchange server (for example: �fake.name@mydomain.com�). This is odd, because I checked the �filter recipients who are not in the directory� option on my Exchange server, which I though would prevent this from happening.

Stranger yet, some of the spam is addressed to people at domains that are not mine�domains for which no recipient policy exists on my Exchange server (example: �fake.name@made_up_domain.com�).

Does anybody have a clue what might be causing this, and how to stop it?

Thanks in advance for your help.

Post #: 1

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RE: Weird spam issues - 12.Jan.2005 9:17:00 PM

tv_mehta

Posts: 24
Joined: 25.Feb.2002
From: USA
Status: offline

Go to your System Manager for Exchange, Global settings- Message delivary properties and check mark the box "filter recipients who are not in directory" under recipient filter tab.

[ January 12, 2005, 09:19 PM: Message edited by: Tushar ]

(in reply to bigdummy)