Quick Guide: Set Primary SMTP Address via PowerShell

Key insights

 

• Learn how to change the alias address to the primary SMTP address using PowerShell for different Exchange environments.
• The process requires a script named Set-PrimaryAddress.ps1, which should be run in the specified environment with correct privileges.
• For Exchange Hybrid environments, modifications in the script are necessary to target cloud mailboxes by changing Get-Mailbox to Get-RemoteMailbox and Set-Mailbox to Set-RemoteMailbox.
• Before running the script effectively, ensure there is an alias set for each mailbox or set them in bulk using a related PowerShell script.
• Test the script with the -WhatIf parameter to ensure accuracy before making actual changes to SMTP addresses.

Overview of Changing SMTP Addresses using PowerShell

Changing SMTP addresses in various Exchange environments using PowerShell is a process involving specific scripts and amendments for different setups like on-premises, hybrid, or online systems. Several preparatory steps are essential, including ensuring every mailbox has an alias set and using the Set-PrimaryAddress.ps1 script accurately. This script is designed to swap the primary SMTP with the alias SMTP in mailboxes. It’s crucial to execute these operations with proper administrative privileges, and testing it first using the -WhatIf parameter prevents unintended changes. The entire process is detailed to facilitate understanding and application, ensuring minimal disruption and the efficient management of SMTP addresses in an organizational setting.

Changing the SMTP addresses within an email system is often required for organizational restructuring or IT policy updates. This adjustment can typically be accomplished using PowerShell scripting, which allows for the swapping of alias SMTP addresses with primary SMTP addresses effectively. The bulk of this transformation, as covered adequately in a comprehensive PowerShell guide, ensures that the alias SMTP addresses become the primary addresses without removing the former primary addresses, thus merely realigning them.

Understanding the prerequisites is essential, which involves assuring every mailbox already has an alias set. It's advised to add any missing secondary SMTP addresses before commencing the primary SMTP address swap. The process should ideally be phased rather than executed in one large batch, using individual scripts to tackle each step to ensure all settings are correctly configured.

The process of setting or swapping the SMTP addresses comprises several detailed steps outlined in the guide's specific PowerShell scripts. Users need to deploy these scripts from the appropriate PowerShell environment—with distinct commands for Exchange online, on-premises, and hybrid setups. Additionally, the guide highlights the importance of conducting a dry run first using the 'WhatIf' command to prevent unwanted changes.

Lastly, post completion of the initial swap, administrators might find it necessary to retarget the SMTP adjustments for specific domains or users based on the requirements. The instructional content elaborates on how the PowerShell script accommodates this by allowing domain-specific configurations. This detailed, technical guide ensures that IT professionals can confidently adjust their email systems' SMTP settings in a controlled and staged manner.

 

Read the full article Change alias address to primary SMTP address with PowerShell

 

People also ask

How do I make my SMTP address primary?

To modify your primary SMTP address, you have the option to utilize the EAC by navigating to the mail addresses dialog box, or you can access the Attribute Editor via Active Directory Users and Computers. Ensure you have activated the advanced view through the view menu, then adjust the proxyAddress attribute accordingly to reflect your desired changes.

How to change primary email address using PowerShell?

To update the primary email address, you can employ PowerShell commands specifically designed for this task.

How do I change the primary SMTP address in exchange shell?

To configure your primary SMTP address using the Exchange Management Shell, you can use specific cmdlets designed for email address management.

How do I remove an email alias in PowerShell?

The Remove-Alias cmdlet in PowerShell allows for the deletion of an alias within the current session. To remove an aliased command that has the Option property set to ReadOnly, it is necessary to employ the Force parameter. It is important to note that the Remove-Alias cmdlet was first introduced in PowerShell version 6.0.

 

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