Am 13.09.2014 um 20:19 schrieb Wietse Venema: > li...@rhsoft.net: >>>> and only because people continue to tell it is reasonable instead block >>>> such connections >>> >>> It would be a burden on YOU to convince people (well Wietse) that it is not >>> reasonable >> >> check_helo_access exists > > Children, stop quarreling. Postfix already has the ability to block > numeric HELO/EHLO. It is not a reliable indicater that the remote > SMTP client is a spambot
the question was "is it reasonable to configure a server that way" there's also no RFC making a PTR mandatory to send mail from a machine while it's accepted common sense not accept mail from a host without a valid PTR
