Anti-spam
Connection Filtering and RBLs in Exchange 2013
Exchange 2003 and later have included Connection Filtering in its repertoire of built-in anitspam tools. In Exchange 2007 and Exchange 2010, this is implemented using…
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Anti-Spam
Anti-spam
Happy New Year, You Just Won a Gazillion Dollars!
With the end of holidays comes the beginning of a new year, and this year a new decade. I’ve had a longer semi-vacation in December,…
Administration
Released: Exchange Server 2007 Service Pack 3
Close on the heels of Exchange 2010 SP 1 beta, Microsoft has just released Exchange 2007 SP 3. You can download the service pack from…
Administration
Social Engineering Attack Disguised As Mailbox Quota Message
Social engineering is all about psychological attacks— convincing a user to willingly divulge information is much more convenient, in most cases, than actually brute-forcing your…
Active Directory
Export and Import Content Filter Words or Phrases
In Exchange 2010 and Exchange 2007, you can add custom words or phrases as good or bad words to modify the Spam Confidence Level (SCL)…
Anti-spam
Troubleshooting Exchange Server Antispam: Disable Outlook Junk Mail
When troubleshooting antispam issues, particularly false positives (legitimate email incorrectly tagged as spam), frequently you run into scenarios where Exchange Server antispam features seem to…
Administration
Disable Antispam agents on a Receive Connector
Exchange 2007’s antispam agents are enabled for all Receive Connectors on a transport server. Is there a way to disable the agents on a particular…
Anti-spam
HOW TO: Prevent annoying spam from your own domain
One of the more annoying types of spam is the one that seems to be coming from your own domain; or worse— from your own…
Anti-spam
Quarantine Mailbox: Displaying original SCL, sender and recipients
In Exchange Server 2007, messages delivered to the quarantine mailbox show up as DSNs sent by the postmaster address of the default domain. In HOW…
Anti-spam
Exchange Server Antispam Updates: Do I have the latest update?
Not sure if the Exchange 2007 or 2003 (IMF) updates on your system are the latest and greatest? Doubt if the automatic update process is…