The package golang-github-emersion-go-imap-sortthread 1.2.0-2 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-emersion-go-imap-sortthread -- More information about golang-github-emersion-go-imap-sortthread: http://pkg.kali.org/pkg/golang-github-emersion-go-imap-sortthread