David Guntner wrote: > > Pierre Fortin grabbed a keyboard and wrote: > > > > Other handy spam restrictors seem to be (from my main.cf): > > smtpd_recipient_restrictions = > > reject_unknown_client <====<< > > permit_mynetworks > > check_relay_domains > > smtpd_client_restrictions = > > reject_unknown_hostname <====<< > > reject_unauth_pipelining <====<< > > hash:/etc/postfix/access_client > > What does reject_unauth_pipelining get rid of? Just curious, but I like to > know what something does before I stick it in a config file... :-) >From http://www.postfix.org/uce.html reject_unauth_pipelining Reject the request when the client sends SMTP commands ahead of time without knowing that Postfix actually supports SMTP command pipelining. This stops mail from bulk mail software that improperly uses SMTP command pipelining to speed up deliveries.
Pierre
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