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Subaddressing or "Plus Addressing" RRS feed

  • Question

  • I was referred to this forum from another with the comment that this one would be a more likely place to get an answer.

    I have done a number of web searches regarding subaddress use with Exchange.  Everything I have found says that Exchange does not support it, Office365 does not support it.  This includes postings in this forum.  Now, since I can send emails with to addresses of the form user+modifier@domain to my Office365 address and since those emails do in fact show up in my user@domain Mac Outlook client inbox with the "+" to address intact, I'm inclined to think that either all of the postings were wrong or something has changed.

    Be all of that as it may, does anyone know of a way to get the sender address on a given piece of email to include a subaddress modifier?

    By the way, I have tested (though not exhaustively) subaddressing in both directions and am able to send to a modified address as well as receive modified address mail to me using my Mac MS Outlook (2011 version) client.

    Saturday, March 22, 2014 6:11 PM

Answers

  • Hi,

    Exchange doesn't support sub-addressing. Seems Office 365 doesn't support it, either. You can post in Office 365 forum to confirm this:

    http://community.office365.com/en-us/forums/default.aspx

    In addition, you can try the workaround below:

    http://havokmon.blogspot.in/2012/11/enabling-exchange-subaddressing-or.html

    Best Regards,

    Steve Fan
    TechNet Community Support

    • Marked as answer by Steve Fan Tuesday, March 25, 2014 2:13 PM
    Tuesday, March 25, 2014 2:50 AM
  • Thanks for your response.  I have just discovered that you are correct about the lack of support.  In talking with one of the Exchange tech experts at my site, I discovered that the appearance of subaddresses working was caused by our SMTP front end and not by Exchange supporting the feature.

    My apologies to the group if my red herring caused confusion.

    Bill

    • Marked as answer by Steve Fan Tuesday, March 25, 2014 2:13 PM
    Tuesday, March 25, 2014 12:42 PM

All replies

  • Hi,

    Exchange doesn't support sub-addressing. Seems Office 365 doesn't support it, either. You can post in Office 365 forum to confirm this:

    http://community.office365.com/en-us/forums/default.aspx

    In addition, you can try the workaround below:

    http://havokmon.blogspot.in/2012/11/enabling-exchange-subaddressing-or.html

    Best Regards,

    Steve Fan
    TechNet Community Support

    • Marked as answer by Steve Fan Tuesday, March 25, 2014 2:13 PM
    Tuesday, March 25, 2014 2:50 AM
  • Thanks for your response.  I have just discovered that you are correct about the lack of support.  In talking with one of the Exchange tech experts at my site, I discovered that the appearance of subaddresses working was caused by our SMTP front end and not by Exchange supporting the feature.

    My apologies to the group if my red herring caused confusion.

    Bill

    • Marked as answer by Steve Fan Tuesday, March 25, 2014 2:13 PM
    Tuesday, March 25, 2014 12:42 PM
  • If this is not supported where can we ask this for this simple feature to be implemented? Can we have it as a hotfix should we just hope that Exchange 2050 will get this feature?

    Thank to those giving workarounds but if there is one, I need one that doesn't require adding a proxy SMTP server in front of a forest of Exchange servers.

    • Edited by uıɹos Wednesday, November 5, 2014 9:05 AM
    Wednesday, November 5, 2014 9:03 AM
  • Has anything new happened since 2014?  Is this feature of Sub-addressing still missing from Office365 accounts?
    Friday, April 7, 2017 11:56 AM
  • It's still missing.
    Tuesday, June 6, 2017 3:46 PM