| 275 | } |
| 276 | |
| 277 | func (s *Session) Mail(from string, opts *smtp.MailOptions) error { |
| 278 | if s.endp.authAlwaysRequired && s.connState.AuthUser == "" { |
| 279 | return smtp.ErrAuthRequired |
| 280 | } |
| 281 | |
| 282 | s.msgLock.Lock() |
| 283 | defer s.msgLock.Unlock() |
| 284 | |
| 285 | if !s.endp.deferServerReject { |
| 286 | // Will initialize s.msgCtx. |
| 287 | msgID, err := s.startDelivery(s.sessionCtx, from, *opts) |
| 288 | if err != nil { |
| 289 | if !errors.Is(err, context.DeadlineExceeded) { |
| 290 | s.log.Error("MAIL FROM error", err, "msg_id", msgID) |
| 291 | } |
| 292 | return s.endp.wrapErr(msgID, !opts.UTF8, "MAIL", err) |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | // Keep the MAIL FROM argument for deferred startDelivery. |
| 297 | s.mailFrom = from |
| 298 | s.opts = *opts |
| 299 | |
| 300 | return nil |
| 301 | } |
| 302 | |
| 303 | func (s *Session) fetchRDNSName(ctx context.Context) { |
| 304 | defer trace.StartRegion(ctx, "rDNS fetch").End() |