Spam mail on Exchange 2013

Dear Experts
Most users in my network are now receiving so much spam mail...

We are using Fortigate 60D. It picks up the email as spam and automatically adds the word "spam" to the subject before its delivering  to the mailbox

Please help me resolve this
Snowbella KilangitAsked:
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Mark GalvinManaging Director / Principal ConsultantCommented:

What I would do is check the headers of the spam and see what the 'To' address that is being used is.

A lot of my clients have their Contact Us email group displayed as plain text on their website which can be picked up by spam engines very easily and used. Same goes for their indivdual email addresses.

Let us know what you find.
Snowbella KilangitAuthor Commented:
The To address is the users name
I.e whichever mailbox it arrives into, the users email address is used

If you feel the spam mails caught by FortiGate are real spams, it would be better to reject instead of tagging on subject line.

Spam bots will send more spams when you accept the mails instead on rejecting them. If you reject spams at first place usually spammer will stop spamming to waste his unnecessary efforts.

Good Luck!

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Snowbella KilangitAuthor Commented:
Thanks rejecting instead of tagging at the firewall solved the issue
Glad that I could help!
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