Exchange 2007

Exchange 2007 Content Filter: How to move messages to Junk Mail folder

You’ve setup Exchange Server 2007, and configured the shiny new Content Filter agent (CFA), which is more than just a rewrite of the equally loved and hated Intelligent Message Filter (IMF) from Exchange Server 2003. How do you configure it? Spam Confidence Level (SCL) Thresholds in Exchange 2007/2010 The CFA has the following three thresholds, […]

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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 external network (internet) to Edge server: SMTP – tcp port 25From Edge server to Hub Transport servers on internal network: SMTP – tcp port 25 Outbound:From Edge to external network/internet: […]

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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. If Exchange does not know about these, SenderID will not be able to determine the correct sending host, and you may see SenderID checks fail on all inbound mail. This […]

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Exchange 2007 Content FIlter: The Whitelist Is Here!

Messaging Hygiene features in Exchange Server 2003, including the Intelligent Message Filter (IMF), did not have a way to whitelist sending domains or SMTP addresses. This is a follow up to a previous post, and one of the more popular ones on this blog— “IMF: Where’s the whitelist?“. (“IMF and whitelist” has for long been […]

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Adventures with OPATH filters in Exchange 2007 and some annoyances if you’re used to LDAP

If you’ve deployed or have been testing Exchange Server 2007, you must have certainly crossed paths with OPATH. OPATH is a querying language, somewhat similar to SQL. It is used to filter objects in PowerShell. OPATH filters replace the LDAP filters for EmailAddressPolicies (equivalent of Recipient Policies), Address Lists/GAL, and Dynamic Distribution Groups (aka “Query-Based […]

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Microsoft announces co-existence and migration tools for Lotus Notes/Domino

Microsoft announced the public beta of its coexistence and migration tools for Lotus Notes/Domino, called Transporter Suite 2007 for Domino. More info on the team blog.

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Oliver Rist talks about bumps in the road to Exchange Server 2007

InfoWorld columnist Oliver Rist writes about bumps in the road to Exchange Server 2007 [read it on Infoworld: “Brace for Exchange 2007 bumps“]. I love Rist’s columns and can be considered a regular reader. Issues he outlines:Issues #1 & 2: Exchange Server 2007 won’t run on the next version of Windows server, codenamed “Longhorn server”. […]

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Enabled by default: SMTP Tarpit in Exchange Server 2007

From a recent discussion, and something I’ve been wanting to post about for a while: SMTP tarpitting is enabled by default on Receive Connectors in Exchange 2007 (and Exchange 210). What is SMTP tarpitting? It’s the process of introducing a delay in SMTP connections from hosts that are suspected of inappropriate SMTP behavior – for […]

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Exchange Server 2007: More questions answered

In an earlier post, I tried to answer some questions about Exchange versions (32-bit and 64-bit issues), amongst other things [read previous post: “Exchange Server 2007: Questions before business launch“]. Users have a lot of questions about the differences between Enterprise and Standard editions, the 32-bit version strictly meant for testing/learning (and not supported in […]

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How To Allow Relaying in Exchange 2010 and Exchange 2007

In Exchange Server 2003, you can allow anonymous SMTP hosts to relay mail by adding their IP address(es) in SMTP Virtual Server Properties | Access tab | Relay. Hosts that require anonymous relay capability include application servers and devices such as copiers, which scan documents and send them as email attachments. Figure 1: Controlling relay […]

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