Administration
Address Literals and Microsoft Exchange
RFC 2821 specifies how address literals can be used to reach recipients – particularly useful when DNS resolution doesn’t work for a particular domain or…
Category
Administration
Administration
IMF: Gateway thresholds per server
So far we’ve known that Exchange Server 2003’s content filter – the Intelligent Message Filter (IMF), uses Gateway and Store thresholds and (Gateway) action that…
Administration
Disabling NDRs
RFC 2821 requires a SMTP host to send non-delivery report if a message is accepted but cannot be delivered, and the reverse path is *not…
Administration
Windows Vista and telnet
Fired up the console (command prompt) in Windows Vista and can’t telnet to smtp or use telnet at all for that matter? Just noticed this…
Administration
Telling Exchange about (non-Exchange) SMTP servers
For anti-spam agents like IP Block List providers (aka DNSBLs/RBLs), and Sender ID, it is important to know about which non-Exchange SMTP servers receive inbound…
Administration
Exchange Server 2007 exposes SCL in message headers
Exchange Server 2003’s Intelligent Message Filter (IMF) assigns a SCL— a value that indicates the probability of a message being spam – to every message…
Administration
Turning on Recipient Validation in Exchange Server 2007
The Edge Transport server role in Exchange Server 2007 performs messaging hygiene functions such as Connection Filtering, Sender & Recipient Filtering, Content Filtering, and SenderID…
Administration
IMF: Archiving spam
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…
Administration
IMF does not scan messages larger than 3 Mb
Microsoft has just released a knowledgebase article – KB 907691 – documenting the inability of its Intelligent Message Filter (IMF) – the anti-spam filter that…
Administration
New Exchange fixes change permissions model, may disrupt Blackberry, Goodlink, and other services
A recent change in the Exchange permissions model may disrupt Blackberry, Goodlink and other services. Many folks may have already applied hotfixes that changed the…