Add the expected external URL in configuration

config/cli.go

@@ -39,6 +39,7 @@ func (o *Options) parseCLI() error {
 	flag.StringVar(&o.DevProxy, "dev", o.DevProxy, "Proxify traffic to this host for static assets")
 	flag.StringVar(&o.Bind, "bind", ":8081", "Bind port/socket")
 	flag.StringVar(&o.DSN, "dsn", o.DSN, "DSN to connect to the MySQL server")
+	flag.StringVar(&o.ExternalURL, "exernalurl", o.ExternalURL, "Begining of the URL, before the base, that should be used eg. in mails")
 	flag.StringVar(&o.BaseURL, "baseurl", o.BaseURL, "URL prepended to each URL")
 	flag.StringVar(&o.DefaultNameServer, "defaultns", o.DefaultNameServer, "Adress to the default name server")
 	flag.Parse()

config/config.go

@@ -43,6 +43,7 @@ import (
 
 type Options struct {
 	Bind              string
+	ExternalURL       string
 	BaseURL           string
 	DevProxy          string
 	DSN               string
@@ -53,6 +54,7 @@ func ConsolidateConfig() (opts *Options, err error) {
 	// Define defaults options
 	opts = &Options{
 		Bind:              ":8081",
+		ExternalURL:       "http://localhost:8081",
 		BaseURL:           "/",
 		DSN:               database.DSNGenerator(),
 		DefaultNameServer: "127.0.0.1:53",