175         self.mailfrom = None
237         return self.mailfrom
242         self.mailfrom = value
379             args = (self.peer, self.mailfrom, self.rcpttos, self.received_data)
532         if self.mailfrom:
563         self.mailfrom = address
564         print('sender:', self.mailfrom, file=DEBUGSTREAM)
572         if not self.mailfrom:
671     def process_message(self, peer, mailfrom, rcpttos, data, **kwargs):  argument
724     def process_message(self, peer, mailfrom, rcpttos, data, **kwargs):  argument
741     def process_message(self, peer, mailfrom, rcpttos, data):  argument
751         refused = self._deliver(mailfrom, rcpttos, data)
755     def _deliver(self, mailfrom, rcpttos, data):  argument
762                 refused = s.sendmail(mailfrom, rcpttos, data)
788     def process_message(self, peer, mailfrom, rcpttos, data):  argument
826             refused = self._deliver(mailfrom, rcpttos, data)
837             msg['From'] = mailfrom