Permanently Clear Previous Mailbox Info

We are introducing a new parameter that can be called by using the Set-User cmdlet in Exchange Online PowerShell. The feature is focused for customers doing migration of on-premises mailboxes to the cloud and you will be able to use it within three weeks or so (Edit 1/19: we updated this due to slower than…


EAI support announcement

Out of 7.6 billion people in the world, only 360 million are native English speakers. Although email has been the earliest and most widely-adopted platform for modern electronic communication, email addresses have only supported a limited subset of Latin characters (mostly due to historical reasons). People who don’t read or speak English have been forced…


The many ways to block automatic email forwarding in Exchange Online

In support, I get this question quite frequently: “How do I block users from auto forwarding their mail outside my environment?” There are plenty of good reasons you may not want auto forwarding: you may have HIPAA laws to follow, regulatory compliance or data privacy concerns or simply because it makes you uncomfortable. A user…


PAW your way into Office 365 Migrations

We have had lots of questions regarding what PAW is when it comes to MRS Migrations, so let’s take a few minutes to explain PAW benefits to you. First off, what is this PAW we keep speaking of? PAW, or Protocol Agnostic Workflow, is new functionality within the Migration Service that really enhances the experience…


Understanding modern public folder quotas

As a part of our ‘demystifying modern public folders’ series we have so far discussed the modern public folder deployment best practices and available logging for monitoring public folder connections. In this blog post, we are going to discuss public folder quotas. Let’s get to it! Public folder mailboxes and quotas Mailbox quotas are not…


Announcing availability of 250,000 public folder Exchange 2010 hierarchy migrations to Exchange Online

Last September, we announced a beta program to validate onboarding of public folder data from Exchange 2010 on-premises to Exchange Online with large public folder hierarchies (100K – 250K public folders). We are glad to announce that Exchange Online now officially supports public folder hierarchies of up to 250K public folders in the cloud –…


Discontinuation of support for Session Border Controllers in Exchange Online Unified Messaging

In July 2018, we will no longer support the use of Session Border Controllers (SBC) to connect 3rd Party PBX systems to Exchange Online Unified Messaging (UM). We’re making this change to provide a higher quality of service for voicemail, using standard Exchange and Skype for Business protocols. Customers considering a new deployment of this…


TooManyBadItemsPermanentException error when migrating to Exchange Online?

Some of you may have noticed that more migrations might be failing due to encountering ‘too many bad items’. Upon closer review, you may notice that the migration report contains entries referencing corrupted items and being unable to translate principals. I wanted to take a few minutes and provide more information to help understand what…


Office 365 Directory Based Edge Blocking support for on-premises Mail Enabled Public Folders

Update 7/10/17: Added a line about OU consideration to Important Notes section. Until now, our on-premises customers who use  Mail Enabled Public Folders (MEPF) could not use services like Directory Based Edge Blocking (DBEB). If DBEB is enabled, any mails sent to Mail Enabled Public Folders (MEPF) will be dropped at the service network perimeter….


2nd call for public folders to O365 Groups migrations

Update: this beta program is now closed; please see this for the feature availability announcement. We got some replies to our previous post on the subject, but wanted to reach out again as we want to make sure we validate this scenario well. Therefore, here is an updated request: If you are using Public Folders…