CCR Over WAN: Failover and FSW questions answered

Exchange Server 2007’s Cluster Continuous Replication (CCR) feature provides a way to set-up geographically-dispersed clusters to protect against data center failure (aka “site failure”). Though the documentation provides plenty of detail on how to set up CCR clusters in a single data center – where both cluster nodes and the computer hosting the File Share […]

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HOW TO: Convert a user mailbox to a resource mailbox

When creating a new mailbox (or a mailbox-enabled user) in Exchange Server 2010/2007, you have the option of creating a user mailbox or a resource mailbox — the latter for conference rooms, or equipment such as projectors, etc. to allow your users to book these resources. If you’ve already created a user mailbox instead, and […]

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RIM does a BlackBerry on Windows Mobile

Interesting announcement from RIM – it will offer the BlackBerry application suite for devices running Microsoft’s Windows Moible 6, which will morph the Windows Mobile device into a BlackBerry at the touch of a button. Sort of. Once installed, the application will provide users with a “virtual BlackBerry appearance” – including support for BlackBerry email, […]

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Computerworld: The deal on the Windows DNS bug

The still unpatched Windows DNS Server bug has been the topic of many a security discussions during the past few days. If you’re running your DNS on a Windows Server (using DNS Server service), this affects you. Computerworld’s Gregg Keizer has a nice write-up about this issue that I just stumbled upon, thanks to Sunbelt […]

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DST 2007: Hotfix released for Exchange Server 2003 Message Tracking issue

Following DST 2007 patches, Exchange’s Message Tracking Center displayed times that were an hour off (though the actual times logged in the Message Tracking log were correctly logged in UTC), as noted in previous post titled “DST 2007: Exchange’s Message Tracking off by an hour“. Microsoft recently released a hotfix to correct this rendering issue […]

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RIM Reveals Cause of BlackBerry Outage

Research In Motion finally provided more details about the cause of its 14-hour outage starting Tuesday night. You can read more about it on Russell Shaw’s The BlackBerry Beat blog on ZDNet, or News.com (RIM offers explanation for massive outage), or the publication of your choice – it’s all over the place. Judging by the […]

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RFC 2821, HELO again: Validating the HELO/EHLO domain

RFCs 2821 and 1869 specify the format of HELO/EHLO commands issued by a SMTP client to initiate a SMTP session. RFC 2821 on HELO/EHLO command: 4.1.1.1 Extended HELLO (EHLO) or HELLO (HELO) These commands are used to identify the SMTP client to the SMTP server. The argument field contains the fully-qualified domain name of the […]

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BlackBerry Outage Cause of a Break-up!

In an interesting twist on last night’s BlackBerry outage at RIM, Network World’s John Cox reports how the extended outage resulted in one user’s girlfriend breaking up with him. After a bad argument the couple had earlier in the day, user Rafael Paz’ girlfriend sent him a few emails. When she did not receive a […]

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Zenprise proactively detects BlackBerry N. America outage!

BlackBerry® users in North America were without email last night (Tuesday April 17th), thanks to an extended system-wide outage in Research In Motion’s network that handles email. Zenprise customers report that Zenprise for BlackBerry automatically detected this outage in the BlackBerry SRP network at 5:19 PM last night, and were able to pro actively inform […]

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Fixed: Outlook 2007 Performance issues with large mailboxes

If you’ve been frustrated with Outlook 2007’s performance when working with large mailboxes or PST files, Microsoft has a hotfix for you – KB 933943: Description of the update for Outlook 2007: April 13, 2007. The update also fixes a couple of other issues documented in this KBA. You won’t need to call Microsoft support […]

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