On 1/9/2011 2:16 PM, Mark Alan wrote:
While using Postfix 2.7.1 at an Ubuntu 10.10 server:
We disabled ETRN as stated in the 'Configuring the Postfix fast ETRN service'
section of the ETRN_README.html
(...)
smtpd_delay_reject = yes
fast_flush_domains =
mydestination = localhost.localdomain, localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
relay_domains = $mydestination
smtpd_etrn_restrictions =
(...)
The problem is that Postfix is still announcing 250-ETRN, and we are
being hit by very persistent machines that keep issuing:
etrn some.domain.tld
just to get:
459<some.domain.tld>: service unavailable
Regards,
M.
http://www.postfix.org/postconf.5.html#smtpd_discard_ehlo_keywords
# main.cf
smtpd_discard_ehlo_keywords = silent-discard, etrn
-- Noel Jones
