https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst File Doc/library/smtpd.rst (right): https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcod... Doc/library/smtpd.rst:35: *localaddr*. It will treat *remoteaddr* as an upstream SMTP relayer. Both Two spaces between the sentences are required. https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcod... Doc/library/smtpd.rst:36: the parameters localaddr and remoteaddr should a tuple in form ``("host",portnumber)``, Please make sure that each line fits into 80 columns. https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcod... Doc/library/smtpd.rst:36: the parameters localaddr and remoteaddr should a tuple in form ``("host",portnumber)``, How about this wording: "Both *localaddr* and *remoteaddr* should be a two-tuple in the form ``('host', portnumber)``... https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcod... Doc/library/smtpd.rst:37: where *host* is a valid IP/FQDN. It inherits from :class:`asyncore.dispatcher`, Only single space between words. https://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcod... Doc/library/smtpd.rst:37: where *host* is a valid IP/FQDN. It inherits from :class:`asyncore.dispatcher`, I'd suggest replacing "It" with "The object". https://bugs.python.org/review/26209/