package main import ( "fmt" "github.com/wneessen/go-mail" "os" ) func main() { th := os.Getenv("TEST_HOST") if th == "" { fmt.Printf("$TEST_HOST env variable cannot be empty\n") os.Exit(1) } tu := os.Getenv("TEST_USER") tp := os.Getenv("TEST_PASS") fa := "Winni Neessen " toa := "Winfried Neessen " //toa = "Winfried Neessen " m := mail.NewMsg() if err := m.From(fa); err != nil { fmt.Printf("failed to set FROM addres: %s", err) os.Exit(1) } if err := m.To(toa); err != nil { fmt.Printf("failed to set TO address: %s", err) os.Exit(1) } m.Subject("This is the Subject with Umlauts: üöäß") m.SetHeader(mail.HeaderContentLang, "de", "en", "fr", "sp", "de", "en", "fr", "sp", "de", "en", "fr", "sp", "de", "en", "fr", "sp") m.SetHeader(mail.HeaderListUnsubscribePost, "üüüüüüüü", "aaaaääää", "ßßßßßßßßß", "XXXXXX", "ZZZZZ", "XXXXXXXX", "äää äää", "YYYYYY", "XXXXXX", "ZZZZZ", "üäö´") m.SetMessageID() m.SetDate() m.SetBulk() c, err := mail.NewClient(th, mail.WithTLSPolicy(mail.TLSMandatory), mail.WithSMTPAuth(mail.SMTPAuthLogin), mail.WithUsername(tu), mail.WithPassword(tp)) if err != nil { fmt.Printf("failed to create new client: %s\n", err) os.Exit(1) } if err := c.DialAndSend(m); err != nil { fmt.Printf("failed to dial: %s\n", err) os.Exit(1) } }