On 6 Nov 2017, at 14:26 (-0500), J Doe wrote:
> Is there any third-party servers or tools in the e-mail ecosystem that
> would depend on this being “Postfix” ?
Nothing *SHOULD* depend on any particular content in the text part of
any SMTP response except EHLO. As Viktor said, it's generally useless to
pretend not to be Postfix, since there are clues you can't configure
away. However, it can be interesting to see what some spambots try when
you claim to be specific old versions of Sendmail.
--
Bill Cole
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