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Title
Emailing the helpdesk bounces back with "Your message can’t be delivered because delivery to this address is restricted" -
Description
When trying to email the helpdesk queue, you receive the following bounceback email message:
Delivery has failed to these recipients or groups:
helpdesk_email@yourdomain.comYour message can’t be delivered because delivery to this address is restricted. -
Cause
The mailbox you're trying to email has delivery restrictions enabled in Exchange -
Resolution
Check the mailbox restriction configuration in Microsoft Exchange and either disable the restriction or add exceptions to the rule to include users that will log tickets.
For more information, see the following link