I can no longer see the Mailbutler icons in Apple Mail.
I have tried to install and uninstall, as well as look for permissions to see if something was limiting but I have not been able to fix it.
Using Mac OS Catalina 10.15
Apple Mail 13.0
Mailbutler 2417 Essential Plan
thanks for your inquiry. In order to fix your issue you need to activate the plugin.
To find out how to activate the plugin, please follow the instructions provided here: https://support.mailbutler.io/knowledge-base/how-to-activate-apple-mail-plug-ins-in-macos-mojave/