GPGMail: Encrypted mail sent to people without key

Matthias's Avatar


09 May, 2018 12:41 PM

Apple Mail Plugin 2.6.4

the title says it all … we sent out a email to several users and they all received the mail encrypted without having a private key by themselves.


  1. Support Staff 1 Posted by Steve on 11 May, 2018 10:51 AM

    Steve's Avatar

    Hi Matthias,

    welcome to the GPGTools support platform. Sorry you are having problems using GPG Suite.

    Are you able to reproduce this behavior? What defaults are you using in > Preferences > GPGMail for encryption, signing and drafts?

    Do all recipients have a public key (ignoring the fact, that they were unable to decrypt)?

    Are you planning on updating your mac to macOS 10.13?


  2. 2 Posted by Matthias on 11 May, 2018 12:42 PM

    Matthias's Avatar

    Hi Steve,
    it's the Mac of a friend of mine (I try to convince everybody to use GPG ;-)
    The box is running 10.11 and can't be upgraded anymore.
    None of the recipients have a key, that's what baffled me and I can't reproduce that behaviour, because all test-addresses I could use are having a valid key.
    Yes, correct, it's set to signing and encrypt drafts.
    If I deactivate the draft encryption, then emails are not encrypted at all, even when the recipient has a valid key.

  3. Support Staff 3 Posted by Steve on 11 May, 2018 01:07 PM

    Steve's Avatar
    1. encrypted message with no public key for recipient
      To test this, you can temporarily export and then delete a public key of a recipient from GPG Keychain. Then you are able to test the situation when no public key is available for the recipient.

    2. If I deactivate the draft encryption, then emails are not encrypted at all, even when the recipient has a valid key.
      That sounds really odd and also should not be the case. There are three defaults (encrypt, sign, drafts). So if you disable drafts and have a valid public key for the recipient and the default to encrypt new emails is enabled, the new message should be encrypted. Can you verify that this is working or not working as expected.

  4. Support Staff 4 Posted by Steve on 27 Aug, 2018 09:10 AM

    Steve's Avatar

    Closing, since no further user feedback was received. Should your problem persist, feel free to re-open this discussion any time.

    All the best, steve

  5. Steve closed this discussion on 27 Aug, 2018 09:10 AM.

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