Support for Dynamic '+' Email Aliases in Office 365
I am familiar with using a plus sign following my email alias to create dynamic unique addresses for a Gmail account. e.g. firstname.lastname@example.org will arrive at my Gmail mailbox, where I can then apply rules based on the 'To:' address. See this page for details: https://support.google.com/mail/answer/22370
I tested this on my Office 365 address and it works, but only for email addresses in my parent domain. Using the aliases on subdomain addresses results in a 'recipient not found' NDR.
Does anyone out there have more information on this feature or if it even is one for 365 / Exchange?
I’m pleased to announce that the plus addressing feature is now available for Exchange Admins to enable. This can be done through Powershell using the following command:
Set-OrganizationConfig -AllowPlusAddressInRecipients $true
For instructions on how to use Powershell, you can find out more here:
The setting may not instantly take effect so please expect a delay before you can start using plus addresses.
The Exchange Transport team
These are called disposable email alias or addresses.
I'd definitely be able to make use of this. Can you please add this as an admin feature turned on?
Is there any progress on this sugestion? I REALLY like to have this feature. Especially with the addition to set # of allowed emails.
Johannes Sidarta commented
Yes, I'd like to see this to be available too; plus the ability for the recipient to see the email address that the sender intended to.
Please also refer to my request on https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin-mso_dep365/subaddressing/3e03ca64-6131-4264-9376-2e269b5700fc?msgId=a0604b83-8e9c-4701-9f38-7e604f789f9b
indeed outlook.com now also supports this. I'm hoping for this feature on exchange/office365 for years
Todd Goetsch commented
To clarify - My team really likes the ability to add a plus (+) to addresses in other email systems (such as GMail, FastMail, and others). I tried it on Office 365 but it immediately bounced back. Does Office 365 have an alternate option to accomplish the same thing?
I'm referring to this feature:
Denis Plante commented
Yes, Maybe i need to get off Office365 and go to gmail...
this would be awesome, bring it on!
Ian Halliday commented
This would be beyond helpful to us!
Igor Barinov commented
I googled around and it looks like Outlook.com already has this feature, so it's just 365 lagging behind.
Please add RFC 5233 sub-addressing to O365. Gmail has had this feature for ages.
Dai Rees commented
Office 365 (and on-prem Exchange) needs the ability to have "disposable" or "instant" email address aliases, like GMail has.
This is where you can specify an arbitrary "tag" in your email address after your normal alias. So if you have "email@example.com" then you can use "firstname.lastname@example.org" and "email@example.com" to let you give a different address to GameStop and Amazon, which makes it easier to filter their emails, as well as protecting your mailbox from untrusted spammers (especially if you add a fake top-level alias and block all email to that alias).
GMail has supported this feature for over a decade now, it's only fair that Outlook/Office 365/Exchange catch-up, and it's a great weapon in a way against spam and unwanted mail.
As a bonus, please add an optional "message count" feature like SpamGourmet has, where you can limit the number of messages received on a particular disposable alias (e.g. "firstname.lastname@example.org" would be limited to 10 emails before all messages are blocked).
Disposable aliases require an ability to instantly block an alias once spam is detected, but a simple GUI can be used for that.
Disposable aliases could be stored in another list-type property in the Active Directory user object the way current aliases for Exchange are stored, so I don't understand why the Exchange team hasn't built this feature.
Dustin C. commented
I would like this, as well. It would make signing up for various web sites more secure (email@example.com, firstname.lastname@example.org). It lets you immediately know which web site sold your information when you receive spam to one of the aliases.
Ideally, this would be a configurable string in the EOP admin center. I could, for instance, change the "+" to be a string ".at." that would be harder for web sites to automatically filter it out.
enable rfc5233 + Tagging
I took this feature for granted when I decided to use O365. Now my money will regretfully go to someone else instead until this feature has been implemented.
This alone make gmail a better product.