Am 01.12.2010 10:08, schrieb lst_ho...@kwsoft.de: > Hello > > the workaround listed at http://www.postfix.org/workarounds.html does > include the following: > > Disable SMTP command pipelining for all mail. This sledgehammer solution > will reduce performance for all outbound mail, by causing extra network > round-trip times. > > /etc/postfix/main.cf: > smtp_discard_ehlo_keywords = silent-discard pipelining > > It should also be possible to only do "-o > smtp_discard_ehlo_keywords=pipelining" in master.cf for the entry used > for SAV, no? > > BTW: The problem also apply for mail to microsoft.com, not only for > frontbridge customer. > > > Regards > > Andreas >
Hi Andreas, but the problem seems only to apear if you use sender verify which isnt a "must have" in my eyes sender verify may be usefull in some cases but might lead to trouble elsewhere too, cause some servers might not like to get probed by faked addresses http://www.postfix.org/ADDRESS_VERIFICATION_README.html Some sites may blacklist you when you are probing them too often (a probe is an SMTP session that does not deliver mail), or when you are probing them too often for a non-existent address. This is one reason why you should use sender address verification sparingly, if at all, when your site receives lots of email. -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
