The Edge Transport server role in Exchange Server 2007 performs messaging hygiene functions such as Connection Filtering, Sender & Recipient Filtering, Content Filtering, and SenderID…
In an interesting twist, Texas spammer Rylak Pitylak – listed as the world’s 4th “most prolific spammer” by Spamhaus – has turned over a new…
As explained in previous posts, the Intelligent Message Filter (IMF) offers a few configuration options. The primary interface for configuring IMF is under Global Settings…
Microsoft has just released a knowledgebase article – KB 907691 – documenting the inability of its Intelligent Message Filter (IMF) – the anti-spam filter that…
Microsoft recently released a hotfix for Intelligent Message Filter that adds functionality to exclude certain recipients from IMF filtering using an exclusive list, or only…
A major source of confusion regarding the Store threshold value used by Intelligent Message Filter (IMF) is the IMF UI itself. This is documented in…
Earlier today I saw some strange behavior with Intelligent Message Filter (IMF) v2. Incoming internet mail wasn’t getting scanned by IMF. Outlook did not show…
If you’ve just upgraded to Exchange Server 2003 Service Pack 2 and have enabled Sender ID filtering, you need to apply a hotfix to prevent…
Messages from specific senders can be blocked by implementing sender filtering. Blocked senders are specified in Global Settings Message Delivery properties Sender Filtering tab (see…
Before you install Exchange Server 2003 SP2 you need to uninstall Intelligent Message Filter (IMF). When you do this, the settings from the SMTP virtual…