Install gir1.2-gmime-3.0 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-gmime-3.0
Description:
MIME message parser and creator library - GObject introspection data
GMime provides a core library and set of utilities which may be used for the creation and parsing of messages using the Multipurpose Internet Mail Extension (MIME). . This package contains data for using GMime under GObject introspection (e.g. Python).
Homepage: https://github.com/jstedfast/gmime/
Version: 3.2.0-1
Section: introspection