Add or Update Proxy Address to AD User with Powershell Scripts
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Effective Way To Remove The SMTP Proxy Address For A User In Azure AD - CHARBEL NEMNOM - MVP | MCT | CCSP | CISM - Cloud & CyberSecurity
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ProxyAddresses
Finding Duplicate SMTP Addresses
How do I change a user's initial domain proxy address - Microsoft Q&A
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POWERSHELL ACTIVE DIRECTORY: ADD OR UPDATE PROXYADDRESSES IN USER PROPERTIES ATTRIBUTE EDITOR | vGeek - Tales from real IT system Administration environment