Known importers: 7
- github.com/flashmob/maildir-processor
- github.com/kevinjqiu/phantomail/pkg/maildir
- github.com/mb0/vmail
- github.com/sloonz/ua/maildir-put
- github.com/zosplays/go-guerrillo/go-guerrilla-master/backends/maildir-processor-master