More flexibile email system.

main.go

@@ -20,7 +20,8 @@ import (
 )
 
 type Config struct {
-	MailHost, Username, Password string
+	MailHost, Username, Password, From string
+	Recipients []string
 	MailPort int
 	Len int64
 }
@@ -52,6 +53,9 @@ func getConf() Config {
 	if _, err := toml.DecodeFile(confFile, &conf); err != nil {
 		log.Fatal("Error reading config file: ", err)
 	}
+	if conf.From == "" {
+		conf.From = conf.Username + "@" + conf.MailHost
+	}
 	of, err := os.Create(path.Join(confDir, "c.R"))
 	if err != nil {
 		log.Fatal("Error creating R source file: ", err)
@@ -126,10 +130,11 @@ func fetch() {
 		log.Fatal("Error opening Rplots.pdf: ", err)
 	}
 	defer f.Close()
+	for _, r := range conf.Recipients {
 		email := mailyak.New(fmt.Sprintf("%s:%d", conf.MailHost, conf.MailPort),
 			smtp.PlainAuth("", conf.Username, conf.Password, conf.MailHost))
-	email.To("gmp@wow.st")
-	email.From("covid@wow.st")
+		email.To(r)
+		email.From(conf.From)
 		msg := "Covid dashboard update for " + time.Now().Format("Monday, January 2 2006")
 		email.Subject(msg)
 		email.Plain().Set(msg)
@@ -138,6 +143,7 @@ func fetch() {
 		if err != nil {
 			log.Print("Error sending email: ", err)
 		}
+	}
 }
 
 func main() {