Microsoft Office 365 will add support for disposable emails

Microsoft will provide Office 365 customers with support for using disposable email addresses to make it simpler to manage their inboxes and to keep track of email campaigns.

The new feature is known as plus addressing (subaddressing or detailed addressing) and it works by allowing Office 365 users to create an unlimited number of custom email addresses by adding suffix text strings to their standard address using a '+' delimiter.

"Plus addressing support in Office 365 is a great way to more easily manage your Inbox, and even track mail like marketing and sales campaigns," Microsoft says.

If plus addressing looks familiar, Gmail provides subaddressing for a while now, with Google explaining in 2008 how this feature can give users better control over their mail inboxes.

Coming in Q3 2020

These new and disposable addresses will redirect to the users' standard one, allowing for easy email filtering when signing up for newsletters, quickly finding from were a spam campaign got your email, and for automatically organizing your emails based on their sender.

"For example, a plus address for kimakers@contoso.com could be something like kimakers+northwind@contoso.com that she could use to sign up for the newsletter at the Northwind web site," Microsoft explains in the new feature's roadmap entry.

"Then when Northwind sends a newsletter to kimakers+northwind@contoso.com it will route directly to kimakers@contoso.com. Kim could create an Inbox rule that then moves messages sent to this + address into the "Northwind" folder."

Plus Addressing is currently in development and Microsoft is planning to make it generally available during Q3 2020, in all environments for all Exchange Online users.

Exchange and Outlook email-related improvements

Later this year, Exchange Online will also be able to use a new Message Recall feature designed to help cloud email users to retrieve messages their recipients haven't yet opened regardless of their mail client.

This new feature will also make it possible to add forgotten attachments or to replace previously sent emails if they ever need any corrections.

Microsoft rolled out Exchange Online protection against Office 365 Reply-All email storms in May, to block inadvertent Distributed Denial of Service (DDoS) attack that could take down one or all of the email servers used to deliver tremendous amounts of replies exchanged between members of large and improperly locked down mail distribution lists.

In January 2019, Microsoft employees fell victim to a reply-allpocalypse, with more than 11,500 of them being caught up in a gigantic reply-all email thread.

In December 2019, Redmond also added support to the Outlook on the web browser-based client for sending emails using alias email addresses (also known as aliases or proxy addresses).