GPG Mail: No mail app plugin

Oleksiy Zhukov's Avatar

Oleksiy Zhukov

05 Jun, 2019 10:29 AM

GPGTools plugin is not available for Mail app.

GPGTools plugin should be available in Mail app.

Additional info

macOS                   10.15       19A471t
GPG Suite               2018.5      2451n   (6f26711)
GPG Mail    -
GPG Keychain    -
GPG Services            1.11.7      1077n   (71fac01)
MacGPG                  2.2.16      930n    (5ca182f)
GPG Suite Preferences   2.1.5       1095n   (da24d01)
Libmacgpg               0.8.8       906n    (0cf24ee)
pinentry           36n     (c3f5edf)
  1. Support Staff 1 Posted by Steve on 05 Jun, 2019 11:04 AM

    Steve's Avatar

    Hi Oleksiy,

    thanks for taking the time to report this problem.

    We are aware of macOS 10.15 Catalina developer releases. The fact that GPG Mail will not work until there is an official release is expected. We connected this discussion with the corresponding ticket and will let you know as soon as we have a version ready for testing.

    Following is an explanation of why GPG Mail is rendered incompatible after macOS updates:

    While a new major version of may introduce only minor visual changes, the codebase underneath it changes dramatically. Other Mail applications provide a number of functions, plugin developers can leverage to extend the application. These functions are guaranteed not to be changed or if they are, developers are notified in advance in order to adapt their plugins to the changes. This however is not the case for Apple can and does change everything they want whenever they want to. There's no notification of what has changed whatsoever, not even for the developers of the most popular Mail plugins.

    Especially during the beta phase of new major versions of macOS, Apple usually introduces a slew of major internal changes with each beta. So in the worst case, plugin developers have to reverse engineer Mail again and again in order to find new or modified functions they could use to enhance Mail the way they need to. In the worst case, those changes can require us to re-reverse engineer most of and rewrite a whole lot of code. Other developers might not be as strongly affected by the changes, since it heavily depends on the Mail functions previously relied upon by each plugin.

    It's hard to tell when there will be an official (beta) release of GPG Mail for macOS Catalina.

    We suggest to get in touch with Apple about this via their feedback form. An example where Apple changes in Mail broke GPG Mail was macOS 10.13.2b3. Apple fixed things around S/MIME and, while doing that, changed some classes. GPG Mail thus no longer worked as expected. With no API this means, we had to invest plenty of time to reverse engineer those changes.

    Kind regards,

Reply to this discussion

Internal reply

Formatting help / Preview (switch to plain text) No formatting (switch to Markdown)

Attaching KB article:


Attached Files

You can attach files up to 10MB

If you don't have an account yet, we need to confirm you're human and not a machine trying to post spam.

Keyboard shortcuts


? Show this help
ESC Blurs the current field

Comment Form

r Focus the comment reply box
^ + ↩ Submit the comment

You can use Command ⌘ instead of Control ^ on Mac