Anti-spam
Assigning SCL to messages scanned by 3rd-party antispam filters
Here’s a problem I had a hard time resolving on Exchange Server 2003. Exchange Server 2007’s Transport Rules resolve this within minutes. Pretend you’re taking…
Category
Transport
Exchange 2007
SMTP Connector Myth: Messages are always routed over SMTP Connectors with more specific address spaces
An Exchange Server message routing myth forever being propagated (including by me!): If 2 SMTP Connectors (or Send Connectors in case of Exchange Server 2007)…
Administration
220 Welcome to a California mail server: Fighting spam with SMTP Banners
If you are interested in messaging and fighting spam, you probably watch the legal response to spam with some interest. Given the nature of email…
Administration
HOW TO: Prevent a user from sending and receiving internet mail
Many organizations want to restrict certain sets of users from sendig or receiving Internet mail. “How do you prevent a user from sending or receiving…
Exchange 2007
Logging SMTP Protocol Activity in Exchange 2013/2010 and Exchange 2007
I wrote about logging SMTP protocol activity in Exchange Server 2003 in what is one of the most popular posts on Exchangepedia. Starting with Exchange…
Administration
Protect users from spam from your own domain in Exchange 2010 and Exchange 2007
One of the common complaints from users and many messaging folks is spam received from senders that appear to be from your own domain. SMTP…
Administration
How to turn off Back Pressure on Exchange Server
In Exchange Server Transport error: 452 4.3.1 Insufficient system resources we learned how the Back Pressure (Previous versions: Exchange 2010 | Exchange 2007) feature monitors…
Exchange 2007
Configuring firewalls and name resolution for Edge Transport servers
If you’re planning to deploy the Edge Transport server role in a perimeter network (aka “DMZ”), here are the ports you’ll need to open: Inbound:From…
Anti-spam
Exchange Server 2007: Making SenderID work with non-Exchange smtp hosts
To make the SenderID filter work with non-Exchange smtp hosts acting as your mail gateways for inbound mail, you need to tell Exchange about them.…
Administration
A Late New Year’s Resolution: Do Not Resolve Anonymous Senders
It’s probably a little late to make another New Year’s resolution, but I’ll try to convince you to make one nevertheless. By default, when an…