Migrating Distribution Groups to Office 365, part 1

Mar. 15, 2016 by

I am most of the way through a hybrid-mode migration from Exchange 2010 to Office 365. There are a few stages in a hybrid migration. During the process, your on-premise

Convert a HashTable to an Array

Jan. 27, 2016 by

Of course, this only works with a single column in the hashtable… Say you have a list of mailboxes in a hashtable, like this: $Mailboxes = Get-Mailboxes -OrganizationalUnit administration But

Disable the Clutter Function in Office 365

Jan. 14, 2016 by

Most systems administrators (and probably just about everyone else in an Information Technology role) receive a large number of status alerts from monitoring systems and automated processes. These alerts are

Message bounces with StorageError when attaching another email

Dec. 21, 2015 by

If you attach one email to another, you might get this bounce message (aka “NDR” or Non-Deliverable Report): John Doe (john.doe@domain.com) The e-mail system had a problem processing this message.

“Header file length is zero” when exporting a mailbox

Dec. 10, 2015 by

For years, I’ve been importing and exporting mailboxes with relatively no problems, when I started getting this error when exporting a number of mailboxes: [PS] C:\Windows\system32>New-MailboxExportReqeust john.doe -FilePath \\server\share\john.doe.pst Unable

Remove Broken ActiveSync Device Partnerships

Oct. 26, 2015 by

A user has hit his maximum mobile device count on your Exchange server, but when you try to remove an unused device that hasn’t synced in over a year, you

Clean Deleted Users from Shared Mailbox Folder Permissions

Oct. 20, 2015 by

I don’t know about you, but it really bugs me to see dead accounts in the ACLs of mailbox folders. I wrote this PowerShell script to clean them up whenever