Stop Microsoft users sending 'reactions' to email by adding a postfix header (neilzone.co.uk)

Article summary

The article discusses how to stop Microsoft users from sending 'reactions' to emails by adding a specific header to the email. The author added the 'x-ms-reactions: disallow' header to their postfix configuration to prevent these reactions. This header is intended to suppress the ability of Microsoft clients to respond with a reaction. The author tested this solution and found it to be partially successful, with some Microsoft users unable to send reactions and others having the reaction symbol greyed out.

Main themes

• Email reactions
• Microsoft email clients
• Postfix configuration
• Email headers
• User experience
• Email communication

What commenters say

• Adding a specific header to emails can prevent Microsoft users from sending reactions, but this may not be a foolproof solution.
• The use of email reactions can lead to a suboptimal user experience, particularly when the recipient does not receive the expected response.
• Some argue that email reactions are a useful way to acknowledge receipt of an email, while others see them as unnecessary or even invasive.
• The implementation of email reactions by Microsoft may be flawed, as it can lead to confusion and misunderstandings between senders and recipients.
• Read receipts and other email features can be seen as invasive or unnecessary, and some users choose to disable them.
• The use of email headers to control email behavior can be complex and may require technical expertise to implement effectively.
• The rise of new messaging technologies, such as RCS, may introduce new features and challenges for email users.