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TonyRedmond's avatar
TonyRedmond
MVP
Apr 22, 2021

New Exchange Online Feature Supports Sending Email from Proxy Addresses

A new Exchange Online feature allows users to send email using any of the SMTP proxy addresses assigned to their mailbox. An Outlook update will make the task easier, but for now it’s reasonably stra...
exchange online
cofloreseit's avatar
cofloreseit
Copper Contributor
Nov 19, 2021

TonyRedmond 

 

I have tested this new functionality and it works when sending from a proxy address, but it seems like it doesn't work for a proxy address on a Shared Mailbox. 

 

I have a Shared Mailbox called SharedMailbox1, it has Primary SMTP address mailto:SharedMailbox1@domain1.com and proxy smtp address mailto:Sharedmailbox1@domain2.com. User1 has Delegate access and Send As permissions from SharedMailbox1.

 

User1 can Send As mailto:sharedmailbox1@domain1.com, but when trying to send email as mailto:sharedmailbox1@domain2.com I receive a message saying I don't have permissions.

 

Any idea or is this expected behavior? 

 

Thanks!  

SWSWOLF's avatar
SWSWOLF
Copper Contributor
Mar 08, 2022
@cflcofloreseit

Did you find a solution? We have the same "problem".

Thanks!
  • Sebjogro's avatar
    Sebjogro
    Copper Contributor
    Mar 08, 2024

    SWSWOLF cofloreseit 

     

    Did you find a solution, we have now the Same behaivor...

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