Breadcrumb TourArchived: Microsoft 365 now supports Plus Addressing

Last Updated: 12/08/2020

Microsoft now allows you to create custom (or disposable) email addresses based off your standard email address with Plus Addressing. Add a unique “tag” to your email address to determine who shares your email address and to add more options for rules.

For example, can use the Plus Addressing feature when signing up for Starbucks rewards as If a spam email arrives from, Ralphie knows Starbucks shared her email address. Or a rule can be created when a message is received from for special processing.

You don’t need to do anything with your Microsoft account to start using this feature. Simply add a “+tag” after your username (can be first.last, alias) and before the “@” sign & emails will arrive in your inbox with the unique address.