GPG Mail: Incoming signed emails do not show the .asc attachment

jjh's Avatar


23 Jan, 2019 07:12 PM

Which of our tools is giving you problems?

GPG Mail.

Attach a screenshot of the version info for all installed components (how to:

see attachment.

I first used the stable version of GPG Suite, then (because of this problem) I installed the current latest version, so I am currently running:
GPG Suite 2018.5, GPG Mail 3.0.1.

On Mac OS 10.14.2, with Apple Mail 12.2.

Describe your problem. Add as much detail as possible.

When I receive signed emails from colleagues (i.e., the email in Apple Mail is correctly displayed with the text “Security: Signed ([email blocked])”), but the email does not show any .asc attachment.

What did you expect instead

I expect signed email messages to contain an .asc attachment. This would enable me to save the attachment, or drag it to GPG Keychain to import the key into my keychain.

Describe steps leading to the problem.

  • I receive signed email.
  • I open the email in Apple Mail.
  • I verify that the email is recognized as signed (i.e., the email in Apple Mail is correctly displayed with the text “Security: Signed ([email blocked])
  • I check whether the email is shown with attachments, in particular: with the expected signature.asc attachment

Are you using any other plugins?


  1. Support Staff 1 Posted by Steve on 23 Jan, 2019 07:21 PM

    Steve's Avatar

    Hi jjh,

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

    There are a few things to take into consideration here:

    • an asc attachment could be both a signature or a public key
    • using PGP/MIME you will not see any attachment for the signature
    • if a public key was attached to the email message you would see an attachment

    Basically GPG Mail is behaving as expected. You received a signed email. The email is shown as signed and the signature was successfully verified. That is all sweet and dandy.

    If you want to see what it would look like if a public key was attached to a signed email, please open GPG Keychain any key then select menubar > key > send public key via email.

    That will open an email draft. Make sure that message is signed (and encrypted if you also want to test that) and then that draft to yourself. You would then receive a signed and encrypted email with an asc files attached, which is the shared public key.

    Hope this makes sense.

    All the best,

  2. 2 Posted by jjh on 24 Jan, 2019 06:35 AM

    jjh's Avatar

    oh ok, thank you for clarifying this!

  3. Support Staff 3 Posted by Steve on 27 Jan, 2019 04:59 PM

    Steve's Avatar

    No worries. Glad this is solved for you.

    I'm closing this discussion. Should you need further assistance or have questions you can re-open this discussion here or open a new one any time.


  4. Steve closed this discussion on 27 Jan, 2019 04:59 PM.

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