Install libetpan-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libetpan-dev
Description:
mail handling library - development files
libEtPan! is a mail library. It may be used for low-level mail handling: network protocols (IMAP/NNTP/POP3/SMTP over TCP/IP with or without SSL), local storage (mbox/MH/maildir) and message/MIME parsing. . This package provides development files for the library.
Homepage: http://www.etpan.org/libetpan.html
Version: 1.8.0-1
Section: universe/libdevel