Microsoft Exchange - Category - byteben

Listing Actual vs Expected DNS Records for a Microsoft 365 Tenant with PowerShell

ben@byteben.com (Ben Whitmore) — Tue, 24 Nov 2020 00:00:00 +0000

In this post we will be looking at how we can list actual vs expected DNS records for a Microsoft 365 tenant with PowerShell.

O365 - How to add a mail.onmicrosoft.com smtp address using PowerShell

ben@byteben.com (Ben Whitmore) — Sat, 28 Jul 2018 00:00:00 +0000

So you are on-boarding user mailboxes to Exchange Online and your user does not have a .mail.onmicrosoft.com smtp address. STOP. Your mailbox migration will fail without it. (Maybe you know this and this is why you are here :) )

Office 365 Migration - User Attribute Discovery and Export using Powershell

ben@byteben.com (Ben Whitmore) — Wed, 04 Jul 2018 00:00:00 +0000

Identity is key. I cannot emphasise this enough as you begin to move workloads into Exchange Online, SharePoint Online and Skye for Business Online. One of the first pieces of advice you should have been given is the user UPN should match the primary SMTP address. Here is why:-

The UPN in Office 365 becomes the default SIP address in Skype for Business Online.
Office (inc Office for IOS) and OneDrive require the UPN to match the email address.

Move-ActiveMailboxDatabase Error: Content index catalog files in the following state: 'Failed' Exchange 2010

ben@byteben.com (Ben Whitmore) — Sun, 26 Jan 2014 00:00:00 +0000

So we came across this when attempting a “Move-ActiveMailboxDatabase” powershell command to mount a mailbox database copy in our DAG. We have a powershell script that mounts all DBS on one exchange server so we can do maintenance on the other.

Cannot send or receive mail on Blackberry Device for mailbox on newly created Exchange 2010 Database

ben@byteben.com (Ben Whitmore) — Sat, 25 Jan 2014 00:00:00 +0000

So you created a new Exchange 2010 Mailbox Database but all mailbox users you move to or create in this database cannot send or receive mail on their Blackberry device? Permissions, permissions, permissions…