Disable reply all on some composed emails

Question

Disable reply all on some composed emails

Aran Billen 966

Hi all,

Is it possible to stop users using "reply to all" button when I send select emails to others?

Faery Fu-MSFT 19,876 Reputation points Moderator

2024-06-20T02:24:57.79+00:00

Hi @Aran Billen ，

Agree with @Vasil Michev , if you think his reply is helpful to you, please remember to mark it as an answer. Warm thanks.
Faery Fu-MSFT 19,876 Reputation points Moderator

2024-07-02T07:11:10.5366667+00:00

Hi @Aran Billen ，

Is there any update on this thread? If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well. Thanks for your understanding.

2 answers

Your answer

Faery Fu-MSFT 19,876 Reputation points Moderator

2024-06-20T02:24:57.79+00:00

Hi @Aran Billen ，

Agree with @Vasil Michev , if you think his reply is helpful to you, please remember to mark it as an answer. Warm thanks.
Faery Fu-MSFT 19,876 Reputation points Moderator

2024-07-02T07:11:10.5366667+00:00

Hi @Aran Billen ，

Is there any update on this thread? If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well. Thanks for your understanding.

Answer 1

Kristin Alexander 25

It is possible though cumbersome.

In the new email you're composing, navigate to the Developer tab (Outlook hides this be default so if you don't see it, right click on the Ribbon, select Customize Ribbon and check the box next to Developer).
Select Design this Form
Select (Actions)
Double Click on Reply All
Uncheck the box that says Enabled
Click Okay
Hit Save

You can navigate back to your message my selecting the Message tab, but I generally hit save and close the email and then go back to in my drafts folder and reopen the email to make any edits before sending. This can be done before you send or after you send.

Hope this helps!

TeeKay 0 Reputation points

2025-09-04T16:04:31.6466667+00:00

This is perfect. Thank you!
Handelsman Dave 0 Reputation points

2025-10-08T16:00:02.15+00:00

I followed these instructions, and it seemed to work when I sent an email to myself. Reply All was not enabled. However, when I did a test with a colleague, they were able to Reply All.

I double-checked and the message in my Sent folder had Replay All disabled. But it was clearly still available to the recipient, and it definitely worked because I received an email.

I repeated the test by disabling Reply AND Reply All. The sent email I have shows these are both disabled. But the recipient has them both enabled and was able to reply.

:(
Stefan Blom 339K Reputation points MVP Volunteer Moderator

2025-10-08T16:19:39.68+00:00

Dave, use the Bbc field (as suggested by Vasil Michev) to specify multiple recipients that won't "see" each other. Recipients will still see Reply All as an option, but they won't see other recipients listed in the mail and any replies they send will only go to the sender.
Handelsman Dave 0 Reputation points

2025-10-08T16:50:09.4733333+00:00

Thanks, but doesn't solve the problem directly. I want the recipients to see who else received the email so they don't forward it around to those that received it originally. But also want to avoid where someone replies "thanks" to everyone on the original list.

I'm curious to understand why the proposed approach works from my view, but not when received by other recipients. I'm far from having any experience with Outlook forms, so I don't really know what's happening behind the scenes to even make it work from my vantage point.
Stefan Blom 339K Reputation points MVP Volunteer Moderator

2025-10-08T17:37:40.4133333+00:00

Well, you can type in a list of recipients. If there are many recipients, that may not be practical, though.

Answer 2

Vasil Michev 126.1K MVP Volunteer Moderator

There is no built-in functionality in Outlook to prevent that. The usual workaround is to add the address to the BCC line and leave the To/CC fields empty, so that pressing the reply/reply all button results in empty address line.

Aran Billen 966 Reputation points

2024-06-20T08:39:37.0266667+00:00

Hi Visual,

I know a few years back I created Rights Management Services which works still on outlook app:

But from outlook online I am unable to select it. I guess this is an old functionality then?
Vasil Michev 126.1K Reputation points MVP Volunteer Moderator

2024-06-20T15:00:22.06+00:00

RMS templates are still an option, just not built-in one :)

To assign an RMS template to a message via OWA (Outlook Online), use the Sensitivity button on the Ribbon (looks like a paintbrush). You might have to hit the "..." item first, or alternatively go to Options tab.

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Disable reply all on some composed emails

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