Le 25/07/2016 à 11:25, Ralf Hildebrandt a écrit : > From my log: > > Jul 23 03:58:52 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:58305: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, > to=<firstname.georgi...@charite.de>, proto=ESMTP, > helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > Jul 23 03:58:53 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:58305: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, to=<hans.lastn...@charite.de>, > proto=ESMTP, helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > > Jul 23 07:59:57 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:42935: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, > to=<firstname.georgi...@charite.de>, proto=ESMTP, > helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > Jul 23 07:59:58 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:42935: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, to=<hans.lastn...@charite.de>, > proto=ESMTP, helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > > Jul 23 12:00:43 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:60516: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, > to=<firstname.georgi...@charite.de>, proto=ESMTP, > helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > Jul 23 12:00:44 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:60516: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, to=<hans.lastn...@charite.de>, > proto=ESMTP, helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > > Jul 23 16:02:54 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:55805: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, > to=<firstname.georgi...@charite.de>, proto=ESMTP, > helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > Jul 23 16:02:55 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject: RCPT > from [106.10.151.33]:55805: 450 4.3.2 Service currently > unavailable; from=<chineseg...@yahoo.com>, to=<hans.lastn...@charite.de>, > proto=ESMTP, helo=<nm21-vm2.bullet.mail.sg3.yahoo.com> > > Why would postscreen repeatedly TEMPFAIL these delivery attempts? > > They come from the same IP (106.10.151.33), go to the same two > recipients and are sent from the same sender. >
Maybe the sending server does not wait enough before sending command ?
