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Windows Vista: Is there really a lack of interest?

Almost every single day for past few weeks, I’ve been asked by someone or the other if Windows Vista is available yet, and whether they should upgrade. Last night it was a teenager at a SonyStyle store in San Jose, where I happened to wander to take a peek at new Vista laptops. (Yes, I’m […]

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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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Exchangepedia is losing the www

Exchangepedia Blog is losing the www from its URL – though it will still be accessible using http://www.exchangepedia.com/blog, all links are changing to https://exchangepedia.com/blog. The atom feed will change from http://www.exchangepedia.com/blog/atom.xml to https://exchangepedia.com/blog/atom.xml at around midnight tomorrow (the former URL should still be accessible).

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Offline Address Book: Mystery of The Missing Recipients

Frequently users report recipients missing from the GAL. So begins the mystery of missing recipients. These are existing users, not new ones. New users don’t show up in the GAL for clients using Outlook 2003 Cached Mode clients, because Outlook uses an Offline Address List (aka “Offline Address Book” or OAB), which is generated once […]

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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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HOW TO: Add a Query-Based Distribution Group to a (non-Query-based/”normal”) Distribution Group

If you try to add a Query-based Distribution Group to a non-Query-based/”normal” Distribution Group by going to group’s properties | Member tab | Add – the UI doesn’t list any Query-based Distribution Groups. One workaround I suggested recently is to add the distinguishedName of the Query-based Distribution Group to the member attribute of the normal […]

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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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IMF: Updates not showing up in Add/Remove Programs?

Some users report that recent updates to Microsoft’s Intelligent Message Filter (for Exchange Server 2003) do not show up in Add/Remove Programs in Windows. Double-checking on some servers, I’ve noticed this – the last update that shows up on those in Add/Remove Programs is dated 8/10/2006.If you look at the registry key for this update […]

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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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