How to change mailbox primary smtp address in Exchange 2010 with powershell

Hello all,

I need to change the mailbox primary smtp address in Exchange 2010 with powershell. I did try through the Exchange Management console but get an error Initialization Failed. The WWW Publishing Service isn't running. Thanks for your help
namergSystems AdministratorAsked:
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Tom CieslikIT EngineerCommented:
Are you trying to change for one single user or for list of users ?
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namergSystems AdministratorAuthor Commented:
Single User
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Tom CieslikIT EngineerCommented:
If you need to change the primary email address for the mailbox instead, then there is a slightly different approach used.

First you need to disable email address policies for the mailbox. Don’t worry; this does not remove any of the email addresses that the policy has already added.


Set-Mailbox "User Full Name" -EmailAddressPolicyEnabled $false

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Next you need to use Set-Mailbox and provide the entire set of email addresses that you want to exist on the mailbox, using the case-sensitive prefix “SMTP” to specifiy which one is the primary address.


Set-Mailbox "Full User Name" -EmailAddresses SMTP:username@emailserver.com
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namergSystems AdministratorAuthor Commented:
Thank you sir
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Tom CieslikIT EngineerCommented:
You are very welcome :)
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