Imports github.com/docker/go-units github.com/flashmob/go-guerrilla github.com/flashmob/go-guerrilla/backends github.com/flashmob/go-guerrilla/log github.com/flashmob/go-guerrilla/mail github.com/jhillyerd/enmime github.com/urfave/cli/v2 Standard library imports bytes encoding/json errors fmt io/ioutil mime mime/multipart net/http net/url os os/signal path/filepath strings syscall time