Microsoft Entra / Exchange Online plus addressing!
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Plus addressing can enable privileged users without a mailbox (reduces the attack vector) to receive email notifications from Microsoft Entra (or other services) to the standard user mailbox?.
Usually admin accounts are created separately from a standard user accounts.
How it works
With plus addressing you can append any valid email text (generally anything except the @ symbol) after the first part of your address joined with a "+" character.
Plus Addressing delivers the Plus email to the standard address because:
It treats the “+” (plus) sign as a special indicator
It ignores everything on right to the “+” sign (for routing purpose)
Any emails sent to these addresses (for example: [email protected]) will be delivered to the standard mailbox (for example: [email protected]).?
Microsoft technical documentation
Some Use Cases :
? PIM approvals
? Access package approvals
? Message center notifications
? Email alerts