Scripting

Testing for bad SMTP Addresses

Rate this post

While working on my latest project,  I encountered a significant number of objects with malformed SMTP addresses.  These appeared to have been objects that had been somehow manually modified over the years by directly writing to the proxyAddresses attribute in Active Directory, bypassing an API that would check for correctly-formatted addresses.… [ Continue reading ]

Identity

How to Merge Duplicate Mail-Enabled User and Contact Objects

Rate this post

One of the first steps in preparing for an Office 365 migration is running a tool we provide called IDFix.  The goal of this tool is to help minimize identity issues when migrating to the cloud.  Most identity issues come down to two issues:

  • Invalid characters in key attributes
  • User objects with duplicate values in indexed attributes (duplicate objects)

The first issue is pretty easy to deal with–IDFix will identify objects with offending characters and the attributes where they exist, and will even make some recommendations. … [ Continue reading ]

Configuration

Creating a Pinpoint DNS Zone

Rate this post

I saw an interesting question floating around a discussion alias earlier today–how to return different IP addresses for the same hostname from different DNS servers for users that are in different regions (for example, have DNS servers on the east coast return “1.2.3.4” for my.domain.com and DNS servers on the west coast return “5.6.7.8” for same name–the trick being that domain.com is an internal Active Directory DNS zone). … [ Continue reading ]

Configuration

Updating Remote Recipient Types on-Premises

Updating Remote Recipient Types on-Premises
5 (100%) 1 vote

During migrations from third-party platforms like Gmail or various POP3 providers or from hosted Exchange environments, we frequently see customers provisioning remote mailboxes for shared resources.

This works fine for three out of four recipient types.… [ Continue reading ]

Configuration

Backup and Restore Distribution Groups from Exchange or Exchange Online

Backup and Restore Distribution Groups from Exchange or Exchange Online
5 (100%) 1 vote

I’ve been involved in a lot of Exchange migrations over the years, to and from all sorts of different environments.

On a current engagement, I had to export a ton of cloud-managed distribution lists and their members from Office 365 / Exchange Online Dedicated and import them into Office 365 Multitenant. … [ Continue reading ]

Identity

Remove an unwanted ProxyAddress pattern from users via AADConnect

Rate this post

I had an interesting request from a customer the other day where they were synchronizing Active Directory into two disparate environments–Office 365 and another hosted Exchange environment.  In their new Office 365 environment, they didn’t want any address proxies matching a particular pattern to be part of a user’s proxyAddress array–BUT–they also didn’t want to remove them from their on-premises accounts since they are being used by their other hosting environment as an application routing address.… [ Continue reading ]

Configuration

Office 365 License Assignment

Rate this post

There is perpetually a lot of angst around licensing users for Office 365 workloads.  Most of my customers over the years have wanted to ease into deployment, only enabling certain services at a time.  Of course, as an evergreen service, we are always adding features, leading to new service plans to disable as you discover them.… [ Continue reading ]

Client

Remove a user’s oldest ActiveSync device

Rate this post

A few weeks ago, I saw something come up for a peer that needed a way to manage the maximum number of ActiveSync devices that a user had connected in Office 365.  Using only native Exchange policies, we can’t do that (MDM solutions solve this problem by manning the Exchange ActiveSync quarantine). … [ Continue reading ]

Configuration

Sign an exported certificate from an F5

Rate this post

I’ve run into this delightful scenario a few times–the network team generates CSRs and certificates for the environment, and since they want to do SSL termination on their network devices, complete the certificate process there.  When you ask for an export of the certificate from, say, an F5, they will just give you the unsigned certificate–so that when you import it into your server, you end up with something unusable, since it has no private key.… [ Continue reading ]

Configuration

Using XML to Backup and Restore Office 365 Settings

Rate this post

Frequently, I am asked to make changes to a customer's environment.  I'm a belt and suspenders kind of guy, so my backups have backups.  At any rate, normally when I am performing changes in a tenant (or Exchange on-premises environment, for that matter), I make two sets of backups–one by piping a Get-cmdlet to Export-CSV (so I have a readable copy), and one by piping the same Get-cmdlet to Export-Clixml (so I have a way to set the nodes as parameters and import them back).… [ Continue reading ]

Configuration

Customizing the Windows PowerShell Console

Rate this post

Another blog on customizing the PowerShell console?  Really?

Yes.  This is actually what I use on a day-to-day basis as a consultant managing many projects at once.  I find that I’m usually running various PowerShell sessions concurrently and having to keep which one is which can be difficult without having to stop and check which server or Office 365 tenant I’m connect to, or what type of activity I’m performing.… [ Continue reading ]

Scripting

Wipe Content from an Exchange Online Mailbox

Rate this post

This tool has been updated with new options.  See https://www.undocumented-features.com/2017/10/19/update-to-wipe-exchange-online-mailbox-script/.

Periodically over the years, I’ve run into content problems trying to migrate data to Exchange Online using third-party migration tools–they somehow get stuck, don’t like something existing in the destination mailbox (or didn’t write it properly in the first place) and you need a clean mailbox to restart the process. … [ Continue reading ]