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
Anti-spam
Administration
Keeping tabs on Antispam filters: A few handy scripts in Exchange Server 2007
One of the more useful improvements in Exchange Server 2007 is the abundance of logging for different features and components (read previous post “Exchange Server…
Anti-spam
Released: ForeFront Security for Exchange SP1
ForeFront Security for Exchange SP1 follows Exchange Server 2007 SP1 out the door. FSE SP1 is compatible with Exchange Server 2007 SP1. It includes support…
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…
Active Directory
New Distribution Groups do not receive internet email by default
New Exchange Server 2007 Distribution Groups created using the Exchange shell or console do not receive internet mail (i.e. mail from unauthenticated senders) by default.…
Administration
Connection Filtering, RBLs and SMTP logs in Exchange 2007/2010
Exchange Server 2003’s Connection Filtering feature allows you to block connections from IP addresses explicitly added to the Global Deny List, or drop messages from…
Administration
SCRIPT: Turning on Filter Junk Email
OWA users who never logon using Outlook do not have their Junk Mail filtering option turned on by default. Exchange MVP Glen Scales has a…
Administration
Why Get-TransportAgent doesn’t agree with the Exchange console
You disable a particular anti-spam agent — let’s say the Content Filtering Agent, using the Exchange Management Console (EMC). Figure 1: Disabling a transport “agent”…
Anti-spam
Header Firewall: Why spammers can’t insert fake SCL (and other Exchange Organization) X headers
After almost a year and a half of working with Exchange Server 2007, I still stumble into features I haven’t tested before. When it happens,…
Anti-spam
Moving items to Junk Mail folder doesn’t do much
Scenario: Junk mail makes it to your Inbox, without getting filtered by any of Exchange’s anti-spam filters.Action: User moves item to Junk Mail folder.Result: This…