69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package smtpd_test
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import (
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"errors"
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"fmt"
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"log"
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"net/smtp"
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"strings"
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"github.com/chrj/smtpd"
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)
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func ExampleServer() {
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var server *smtpd.Server
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// No-op server. Accepts and discards
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server = &smtpd.Server{}
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server.ListenAndServe("127.0.0.1:10025")
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// Relay server. Accepts only from single IP address and forwards using the Gmail smtp
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server = &smtpd.Server{
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HeloChecker: func(peer *smtpd.Peer, name string) error {
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if !strings.HasPrefix(peer.Addr.String(), "42.42.42.42:") {
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return errors.New("denied")
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}
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return nil
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},
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RecipientChecker: func(peer *smtpd.Peer, addr string) error {
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peer.IncrInt("recipientsQueued", 1)
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if strings.HasPrefix("scubad1ver", addr) {
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// it is bad idea ;-)
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peer.SetString("never_send_to_scuba", addr)
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}
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return nil
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},
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Handler: func(peer *smtpd.Peer, env smtpd.Envelope) error {
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numberOfRecepients, ok := peer.Meta["recipientsQueued"]
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if ok {
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log.Printf("Sending email for %v recipients...", numberOfRecepients)
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}
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never, ok := peer.Meta["never_send_to_scuba"]
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if ok {
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return smtpd.Error{
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Code: 521,
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Message: fmt.Sprintf("Sending messages to %s is a bad idea", never),
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}
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}
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return smtp.SendMail(
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"smtp.gmail.com:587",
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smtp.PlainAuth(
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"",
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"username@gmail.com",
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"password",
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"smtp.gmail.com",
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),
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env.Sender,
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env.Recipients,
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env.Data,
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)
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},
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}
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server.ListenAndServe("127.0.0.1:10025")
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}
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