Install libpantomime1.2 by entering the following commands in the terminal:
sudo apt update sudo apt install libpantomime1.2
GNUstep framework for mail handling (runtime library)
Pantomime provides a GNUstep framework that models a mail system. Pantomime can be seen as a JavaMail 1.2 clone written in Objective-C. . This package contains the runtime library files.