Never mind! Found my answer in the first announcement on SMTP Smuggling (in the postfix-announce mailing list): it does, in fact, make "reject_unauth_pipelining" redundant, as expected.
On Thu, Mar 7, 2024 at 5:03 AM Grant Gryczan <grantgryc...@gmail.com> wrote: > Hello, > > Does the new smtpd_forbid_unauth_pipelining > <https://www.postfix.org/postconf.5.html#smtpd_forbid_unauth_pipelining> > config > default in Postfix 3.9 make it no longer necessary to set the following? > > smtpd_data_restrictions > <https://www.postfix.org/postconf.5.html#smtpd_data_restrictions> = > reject_unauth_pipelining > <https://www.postfix.org/postconf.5.html#reject_unauth_pipelining> > > I'm wondering if this new option, when set to its default value of "yes", > would make the above setting redundant now. > > (Never used a mailing list before, forgive me if I'm doing it wrong!) > > Thanks, > Grant >
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