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YaYangTeahFlag for Malaysia

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Spam Mail

This few days my users found that a lot of spam mail in our exchange server .Our domain name is abc.com ,i can see that some of the unknown user like 123@abc.com....send the spam mail to my user like realusers@abc.com. Please advice what going wrong.
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Radhakrishnan
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madunix

Email spamming is a variant of bombing and refers to sending email to hundreds or thousands of users, May be combined with email spoofing, which alters the identity of the account sending the message, making it more difficult to determine from whom the email is coming.  Make sure you have Antivirus and Antispam software are necessary to detect, contain and notify whenever malicious code is detected.
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ASKER

Today I found that our Symantec Mail Security services is stopped that could be a reason having the mail spoofing issue.

May I Know how to avoid this issue if without Mail Security  ?
Hi,
Without mail security exchange can't handle the spam fully
May I Know how to avoid this issue if without Mail Security  ?

Get a better anti-spam package.  I am no fan of Symantec or McAfee even when it is allegedly up and running... too much spam through the sieve and too many false positives.