GPGMail: Encryption/Decryption of the Subject (feature request)

davidm's Avatar


05 Apr, 2018 09:35 AM


Enigmail 2.0 now supports the encryption of the email subject; however this now means that all emails from Enigmail to GPG Suite have the subject "Encrypted Message"

Is the ability to manage the encrypted subject on the GPG suite roadmap?


  1. 1 Posted by Râu Cao on 05 Apr, 2018 11:15 AM

    Râu Cao's Avatar

    Hah, just wanted to ask the same question. :)

    I found the spec for implementing the change. It's called Memory Hole and is part of the Autocrypt project:

    It's really simple and straightforward: basically just adds an in-body header of a simple format to the content of encrypted emails, so that the receiver's program can parse it and replace the actual subject line with the subject defined in that header.

  2. Support Staff 2 Posted by Steve on 05 Apr, 2018 11:18 AM

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    Hi davidm,

    welcome to the GPGTools support platform.

    We have a ticket for this problem. I connected this discussion with the existing ticket. That means, should this discussion get closed, it will be re-opened as soon as the ticket is closed. That way you'll stay in the loop and get notified as soon as we have news. Feel free to open a new discussions should you run into further problems or need assistance.

    It's on the roadmap.

    Kind regards,

  3. 3 Posted by davidm on 06 Apr, 2018 08:19 AM

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    Hi Steve,

    Many thanks for the prompt response. Is there any way to be notified when there is a nightly build with this feature?

    Kind regards,


  4. Support Staff 4 Posted by Luke Le on 06 Apr, 2018 11:07 AM

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    Hi David,

    once we change the status of the ticket to "fixed", we will see the connected discussions and update you accordingly with a link to the nightly build that includes the fix.

  5. Steve closed this discussion on 18 Jul, 2018 02:15 PM.

  6. davidm re-opened this discussion on 08 Aug, 2018 04:29 PM

  7. 5 Posted by davidm on 08 Aug, 2018 04:29 PM

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    Is there any expected timeline for this? I see the linked ticket was from 2014

    Thanks in advance,


  8. Support Staff 6 Posted by Luke Le on 09 Aug, 2018 09:58 AM

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    No, unfortunately there isn‘t at the moment. The problem is still that on macOS Mail encrypted messages are not indexed for search. So if the subject was encrypted as well, that would render encrypted messages completely unsearchable.

    I’m not sure at the moment how enigmail handles that, but for us that‘s a reason not to implement it for writing for now. Displaying the decrypted subject should be more easily possible, but we yet to look into it.

  9. 7 Posted by davidm on 23 Oct, 2018 10:03 AM

    davidm's Avatar

    Hi Luke,

    Is there any timeline for this, as with a licence now being charged for the use of the suite with macOS Mail my company has to decide whether to purchase this or switch to Thunderbird/Enigmail that has this support.

    At the moment the encrypted subject emails are not usable in search, so even just having the subject visible and usable in replies would be a start.



  10. Support Staff 8 Posted by Steve on 29 Oct, 2018 02:54 PM

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    This is not on the near term timeline. However we would love to add support for this feature.

    And hearing there is demand for this surely will up the priority for the existing ticket.

    Sorry I don't have better news.


  11. 9 Posted by davidm on 19 Mar, 2019 10:43 AM

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    Any updates on the roadmap?
    I'd love to go back to MacOS mail.



  12. Support Staff 10 Posted by Steve on 21 Mar, 2019 10:12 PM

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    Thanks for pinging about this. We don't have any news. We'll let you know as soon as we have something to be tested.

  13. Steve closed this discussion on 23 Sep, 2019 09:47 AM.

  14. davidm re-opened this discussion on 23 Aug, 2021 09:07 AM

  15. 11 Posted by davidm on 23 Aug, 2021 09:07 AM

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    Any updates?

  16. Support Staff 12 Posted by Steve on 24 Aug, 2021 08:53 PM

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    Thanks for pinging - currently no. I understand this is not the answer you were hoping for, am aware this feature request has existed for a long time and I myself would love to have this feature but the current priority is to get GPG Mail ready for macOS Monterey which is due rather soon.

  17. Steve closed this discussion on 08 Sep, 2021 05:51 PM.

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