81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package smtp_server
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import (
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"crypto/tls"
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"github.com/emersion/go-smtp"
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log "github.com/sirupsen/logrus"
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"net"
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"pmail/config"
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"time"
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)
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// The Backend implements SMTP server methods.
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type Backend struct{}
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func (bkd *Backend) NewSession(conn *smtp.Conn) (smtp.Session, error) {
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remoteAddress := conn.Conn().RemoteAddr()
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return &Session{
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RemoteAddress: remoteAddress,
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}, nil
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}
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// A Session is returned after EHLO.
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type Session struct {
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RemoteAddress net.Addr
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}
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func (s *Session) AuthPlain(username, password string) error {
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return nil
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}
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func (s *Session) Mail(from string, opts *smtp.MailOptions) error {
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return nil
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}
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func (s *Session) Rcpt(to string) error {
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return nil
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}
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func (s *Session) Reset() {}
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func (s *Session) Logout() error {
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return nil
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}
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var instance *smtp.Server
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func Start() {
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be := &Backend{}
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instance = smtp.NewServer(be)
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instance.Addr = ":25"
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instance.Domain = config.Instance.Domain
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instance.ReadTimeout = 10 * time.Second
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instance.WriteTimeout = 10 * time.Second
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instance.MaxMessageBytes = 1024 * 1024
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instance.MaxRecipients = 50
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// force TLS for auth
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instance.AllowInsecureAuth = false
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// Load the certificate and key
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cer, err := tls.LoadX509KeyPair(config.Instance.SSLPublicKeyPath, config.Instance.SSLPrivateKeyPath)
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if err != nil {
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log.Fatal(err)
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return
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}
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// Configure the TLS support
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instance.TLSConfig = &tls.Config{Certificates: []tls.Certificate{cer}}
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log.Println("Starting server at", instance.Addr)
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if err := instance.ListenAndServe(); err != nil {
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log.Fatal(err)
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}
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}
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func Stop() {
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if instance != nil {
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instance.Close()
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}
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}
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