Microsoft Ignite: Exchange Server & Online Updates

Today at Microsoft Ignite 2020, Exchange Team announced multiple changes. Let me share those here.

Exchange Calculator got Freedom from ISO

I have blogged about it here.

New and Final Exchange Server

I have blogged about it here.

Multi-Forest Exchange Hybrid and Multiple Tenants Changes

New Exchange Online Admin Center

  • New Modern Experience
  • New Reporting
  • New Personalize dashboards
  • Cross Tenant Migration
  • Actionable Insight
  • Better Mobile experience, check here

PowerShell V2

Plus Addressing

  • Allows to add “+something” suffix to the alias of the email
  • It means a sender can send email to +something email id in place of your normal email id
  • Imagine if you have subscribed RSS Feed email from GoldenFiveConsulting, LAEXUGFoundation, MSExchangeGuru, TechWizard and Azure365Pro. You will receive email from all of them and it will land to your inbox. In place of using their email domain to move the emails to their folder, you can use full email, to go GoldenFive Folder, to LAEXUGFoundation Folder, to MSExchangeGuru Folder, to TechWizard Folder, and to Azure365Pro Folder
  • The benefit is identifying a spam is easy, we don’t have to share our email to subscribe a service
  • To enable Plus Addressing in your tenant run the following command

    Set-OrganizationConfig -AllowPlusAddressInRecipients $true

  • Plus addressing treats the “+” sign as a special character indicator which tells exchange routing to ignore + and text after this for email routing purpose.
  • Left side of + should be your primary email ids alias, alias of secondary email will not work.
  • Here is a sample of Plus Address, the best part is admin don’t need to add another alias.

Basic Authentication and Exchange Online

  • Basic Authentication will be retired in Exchange Online.
  • Use OAuth will support for POP, IMAP and SMTP AUTH.
  • Microsoft has added easy on/off switch in M365 Admin Center.
  • Basic Authentication will be disabled in the new tenants using Security Defaults.
  • Microsoft will be turning off the Basic AUTH if there is no usage, so be prepared for surprises or plan to upgrade to Modern Authentication.
  • Once Basic Authentication has been turned off, it will be impossible to turn it back on.

Cross-tenant mailbox migrations in Public Preview

  • Another game changer by Microsoft Exchange Team which will reduce exchange Migration tools requirement for example BitTitan’s MigrationWiz for mailbox migration is not required any more.
  • Prepare the tenants is the main work,
  • It uses an Enterprise Application in Azure Active Directory (Azure AD) and Azure Key Vault, Azure Key Vault is used to securely store and access the certificate/secret and we need Azure Key Vault subscription.
  • Looking in to the configuration, organization might still be okay to use 3rd party migration tools like BitTitan’s MigrationWiz for mailbox migration.
  • It seems mentioned in Preview but I was able to take below screenshot from my office 365 tenant where I can see Cross tenant migration

Stop BCCing a Group – Coming in Q4.

  • Configure the DL to be rejected if it is in BCC

Check out other Exchange Team Resources.

For all queries contact us at or schedule a call at

Best Regards,
Prabhat Nigam
CEO at LAEXUG Foundation CTO at Golden Five Consulting

CTO @ Golden Five | CEO at LAExUG Foundation

Prabhat is 3 times Microsoft MVP Award winner. He is MBA in Information Technology and he is working as a CTO at Golden Five Consulting which is a Microsoft Gold Partner, MSP, T1CSP, and Education partner. He helps in designing, implementing, managing and supporting solutions for private messaging cloud, mergers, a collaboration between different messaging software and other migration & deployment projects for the following technologies Office 365, Azure, AWS, Exchange, SQL, ADFS, MFA, FIM, MIM and Directory services. He has worked for all big IT giants either as an employee or contractor where he has led the Global teams. He has started his career as Technical Consultant in Exchange 5.5 with Microsoft PSS and his exchange love never stopped & continued with 2000/2003/2007/2010/2013/2016/2019/O365. At one point in time, he was the only person to support EDS customers when Microsoft had closed all the supports for 5.5 and now for all old legacy Exchange versions.
He used to blog at, manages multiple LinkedIn and Facebook Groups. He also Owns MSExchnageGuru YouTube channel where he uploads all his records technical sessions. Don’t forget to check his PowerShell scripts which are making admins life easier. Prabhat can be reached at

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