# # -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= # Before the development of ungrey-robins, it was found workable to simply set spamd's greylisting expire time to 4 days, not 4 hours. This particular google host never retried within 4 days, the message eventually being delivered by another of google's servers in 2016: The 2016 mail log extract below shows there is no point in running ungrey-robins more often than 4 hours, i.e. spamd's default greylisting expire time. Feb 6 00:40:33 teak spamd[6337]: 209.85.192.193: connected (1/0) Feb 6 00:42:09 teak spamd[15807]: new entry 209.85.192.193 from to , helo mail-pf0-f193.google.com Feb 6 00:42:09 teak spamd[6337]: 209.85.192.193: disconnected after 96 seconds. Feb 7 00:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.58 Feb 7 00:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 13 Feb 7 04:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 04:11:01 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.58 Feb 7 04:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 13 Feb 7 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.58 Feb 7 08:11:03 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 08:11:03 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 13 Feb 7 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.57 Feb 7 12:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 13 Feb 7 16:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 16:11:01 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.57 Feb 7 16:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 13 Feb 7 20:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 7 20:11:01 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 7 20:11:01 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.53 Feb 7 20:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 7 20:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.53 Feb 8 00:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.53 Feb 8 04:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 08:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.53 Feb 8 08:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 12:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 12:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.50 Feb 8 12:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 16:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 16:11:01 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.50 Feb 8 16:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 8 20:11:16 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 20:11:16 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 20:11:17 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 20:11:17 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.49 Feb 8 20:11:17 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 00:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 9 00:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.49 Feb 9 00:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 9 04:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.49 Feb 9 04:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 08:11:01 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 08:11:01 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 9 08:11:01 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.49 Feb 9 08:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 08:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 12:11:05 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 12:11:05 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 9 12:11:06 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 12:11:06 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.47 Feb 9 12:11:06 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain rep.mailspike.net as 127.0.0.17 Feb 9 16:11:02 teak ungrey-robins: 209.85.192.193 listed by domain score.senderscore.com as 127.0.4.47 Feb 9 16:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 9 20:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 10 00:11:02 teak ungrey-robins: 209.85.192.193 mail-pf0-f193.google.com. scored 10 Feb 10 00:42:29 teak spamd[18136]: queueing deletion of 209.85.192.193 mail-pf0-f193.google.com # # -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= # Reverting to spamd's default greylisting expire time of 4 hours, with a 4 hourly cron job run of ungrey-robins shows a perfectly satisfactory Gmail round robin SMTP delivery, involving 6 of Google's random pool sending clients in 2016. There is no manual maintenance of whitelists, by trawling massive SPF IP blocks. These clients are spamd whitelisted by ungrey-robins, for 36 days by default, (which can be considerably extended), so connections from these pooled clients avoid spamd's greylisting during that period. The mail log extract below shows no single round-robin sending server reconnects again, so there is no point in running ungrey-robins more often than 4 hours, i.e. spamd's default greylisting expire time. Feb 8 18:50:09 teak spamd[12533]: 209.85.217.176: connected (1/0) Feb 8 18:51:44 teak spamd[326]: new entry 209.85.217.176 from to , helo mail-lb0-f176.google.com Feb 8 18:51:44 teak spamd[12533]: 209.85.217.176: disconnected after 95 seconds. Feb 8 18:55:50 teak spamd[12533]: 209.85.217.181: connected (1/0) Feb 8 18:57:25 teak spamd[326]: new entry 209.85.217.181 from to , helo mail-lb0-f181.google.com Feb 8 18:57:25 teak spamd[12533]: 209.85.217.181: disconnected after 95 seconds. Feb 8 19:14:24 teak spamd[12533]: 209.85.217.177: connected (1/0) Feb 8 19:15:59 teak spamd[326]: new entry 209.85.217.177 from to , helo mail-lb0-f177.google.com Feb 8 19:15:59 teak spamd[12533]: 209.85.217.177: disconnected after 95 seconds. Feb 8 19:50:20 teak spamd[12533]: 209.85.217.195: connected (1/0) Feb 8 19:51:56 teak spamd[326]: new entry 209.85.217.195 from to , helo mail-lb0-f195.google.com Feb 8 19:51:56 teak spamd[12533]: 209.85.217.195: disconnected after 96 seconds. Feb 8 20:11:02 teak ungrey-robins: 209.85.217.181 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 20:11:02 teak ungrey-robins: 209.85.217.181 listed by domain rep.mailspike.net as 127.0.0.18 Feb 8 20:11:02 teak ungrey-robins: 209.85.217.181 listed by domain score.senderscore.com as 127.0.4.99 Feb 8 20:11:16 teak ungrey-robins: 209.85.217.181 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 20:11:16 teak ungrey-robins: 209.85.217.181 mail-lb0-f181.google.com. scored 18 (granted grace) Feb 8 20:11:18 teak ungrey-robins: 209.85.217.176 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 20:11:18 teak ungrey-robins: 209.85.217.176 listed by domain rep.mailspike.net as 127.0.0.17 Feb 8 20:11:19 teak ungrey-robins: 209.85.217.176 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 20:11:19 teak ungrey-robins: 209.85.217.176 listed by domain score.senderscore.com as 127.0.4.99 Feb 8 20:11:19 teak ungrey-robins: 209.85.217.176 mail-lb0-f176.google.com. scored 17 (granted grace) Feb 8 20:11:20 teak ungrey-robins: 209.85.217.177 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 20:11:20 teak ungrey-robins: 209.85.217.177 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 20:11:20 teak ungrey-robins: 209.85.217.177 listed by domain rep.mailspike.net as 127.0.0.18 Feb 8 20:11:20 teak ungrey-robins: 209.85.217.177 listed by domain score.senderscore.com as 127.0.4.99 Feb 8 20:11:20 teak ungrey-robins: 209.85.217.177 mail-lb0-f177.google.com. scored 18 (granted grace) Feb 8 20:11:20 teak ungrey-robins: 209.85.217.195 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 20:11:21 teak ungrey-robins: 209.85.217.195 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 20:11:21 teak ungrey-robins: 209.85.217.195 listed by domain rep.mailspike.net as 127.0.0.18 Feb 8 20:11:21 teak ungrey-robins: 209.85.217.195 listed by domain score.senderscore.com as 127.0.4.70 Feb 8 20:11:21 teak ungrey-robins: 209.85.217.195 mail-lb0-f195.google.com. scored 16 (granted grace) Feb 8 20:11:21 teak ungrey-robins: spamdb whitelisted: 209.85.217.181 209.85.217.176 209.85.217.177 209.85.217.195 Feb 8 22:52:32 teak spamd[18136]: queueing deletion of 209.85.217.176 mail-lb0-f176.google.com Feb 8 22:57:32 teak spamd[18136]: queueing deletion of 209.85.217.181 mail-lb0-f181.google.com Feb 8 23:04:38 teak spamd[12533]: 209.85.217.196: connected (1/0) Feb 8 23:06:13 teak spamd[326]: new entry 209.85.217.196 from to , helo mail-lb0-f196.google.com Feb 8 23:06:13 teak spamd[12533]: 209.85.217.196: disconnected after 95 seconds. Feb 8 23:16:33 teak spamd[18136]: queueing deletion of 209.85.217.177 mail-lb0-f177.google.com Feb 8 23:52:36 teak spamd[18136]: queueing deletion of 209.85.217.195 mail-lb0-f195.google.com Feb 8 00:11:00 teak ungrey-robins: 209.85.217.196 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 8 00:11:00 teak ungrey-robins: 209.85.217.196 listed by domain list.dnswl.org as 127.0.5.1 Feb 8 00:11:00 teak ungrey-robins: 209.85.217.196 listed by domain rep.mailspike.net as 127.0.0.18 Feb 8 00:11:00 teak ungrey-robins: 209.85.217.196 listed by domain score.senderscore.com as 127.0.4.69 Feb 8 00:11:00 teak ungrey-robins: 209.85.217.196 mail-lb0-f196.google.com. scored 15 (granted grace) Feb 8 00:11:01 teak ungrey-robins: spamdb whitelisted: 209.85.217.196 209.85.220.47 Feb 9 00:55:49 teak postfix/postscreen[4608]: CONNECT from [209.85.217.196]:35538 to [78.33.153.148]:25 Feb 9 00:55:50 teak spamlogd[12344]: inbound 209.85.217.196 Feb 9 00:55:50 teak postfix/dnsblog[15163]: addr 209.85.217.196 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 Feb 9 00:55:50 teak postfix/dnsblog[15163]: addr 209.85.217.196 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 Feb 9 00:55:50 teak postfix/dnsblog[15163]: addr 209.85.217.196 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 00:55:50 teak postfix/dnsblog[17585]: addr 209.85.217.196 listed by domain rep.mailspike.net as 127.0.0.18 Feb 9 00:55:51 teak postfix/dnsblog[15163]: addr 209.85.217.196 listed by domain score.senderscore.com as 127.0.4.69 Feb 9 00:55:55 teak postfix/postscreen[4608]: NOQUEUE: reject: RCPT from [209.85.217.196]:35538: 450 4.3.2 Service currently unavailable; from=, to=, proto=ESMTP, helo= Feb 9 00:55:55 teak postfix/postscreen[4608]: PASS NEW [209.85.217.196]:35538 Feb 9 00:55:55 teak postfix/postscreen[4608]: DISCONNECT [209.85.217.196]:35538 Feb 9 03:06:52 teak spamd[18136]: queueing deletion of 209.85.217.196 mail-lb0-f196.google.com Feb 9 03:21:25 teak spamd[12533]: 209.85.217.193: connected (1/0) Feb 9 03:22:56 teak spamd[326]: new entry 209.85.217.193 from to , helo mail-lb0-f193.google.com Feb 9 03:22:57 teak spamd[12533]: 209.85.217.193: disconnected after 92 seconds. Feb 9 04:11:03 teak ungrey-robins: 209.85.217.193 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 04:11:04 teak ungrey-robins: 209.85.217.193 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 127.0.1.1 Feb 9 04:11:04 teak ungrey-robins: 209.85.217.193 listed by domain rep.mailspike.net as 127.0.0.18 Feb 9 04:11:04 teak ungrey-robins: 209.85.217.193 listed by domain score.senderscore.com as 127.0.4.75 Feb 9 04:11:04 teak ungrey-robins: 209.85.217.193 mail-lb0-f193.google.com. scored 16 (granted grace) Feb 9 04:11:04 teak ungrey-robins: spamdb whitelisted: 209.85.217.193 Feb 9 07:23:11 teak spamd[18136]: queueing deletion of 209.85.217.193 mail-lb0-f193.google.com Feb 9 07:48:49 teak spamlogd[12344]: inbound 209.85.217.195 Feb 9 07:48:49 teak postfix/postscreen[20793]: CONNECT from [209.85.217.195]:34854 to [78.33.153.148]:25 Feb 9 07:48:49 teak postfix/dnsblog[6716]: addr 209.85.217.195 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 Feb 9 07:48:50 teak postfix/dnsblog[6716]: addr 209.85.217.195 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 Feb 9 07:48:50 teak postfix/dnsblog[6734]: addr 209.85.217.195 listed by domain list.dnswl.org as 127.0.5.1 Feb 9 07:48:50 teak postfix/dnsblog[6716]: addr 209.85.217.195 listed by domain rep.mailspike.net as 127.0.0.18 Feb 9 07:48:50 teak postfix/dnsblog[18701]: addr 209.85.217.195 listed by domain score.senderscore.com as 127.0.4.70 Feb 9 07:48:50 teak postfix/postscreen[20793]: PASS NEW [209.85.217.195]:34854 Feb 9 07:48:50 teak postfix/smtpd[31079]: connect from mail-lb0-f195.google.com[209.85.217.195] Feb 9 07:48:50 teak postfix/smtpd[31079]: 3pzxDf6kCCzV8: client=mail-lb0-f195.google.com[209.85.217.195] Feb 9 07:48:51 teak postfix/cleanup[32456]: 3pzxDf6kCCzV8: message-id= Feb 9 07:48:54 teak postfix/qmgr[5267]: 3pzxDf6kCCzV8: from=, size=2134439, nrcpt=1 (queue active) Feb 9 07:48:54 teak postfix/smtpd[31079]: disconnect from mail-lb0-f195.google.com[209.85.217.195] Feb 9 07:49:16 teak postfix/smtp[12567]: 3pzxDf6kCCzV8: to=, orig_to=, relay=mx2.hotmail.com[65.54.188.94]:25, delay=25, delays=3.7/0.07/0.85/21, dsn=2.0.0, status=sent (250 Queued mail for delivery) Feb 9 07:49:16 teak postfix/qmgr[5267]: 3pzxDf6kCCzV8: removed # # -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= # Another 2016 syslog sample extract, showing a _RARE_ instance of a round-robin host (209.85.220.50) reconnecting within the 4 hour greylisting expire period, YET that host still fails to actually deliver mail after being auto whitelisted: Feb 15 20:56:15 teak spamd[12533]: 209.85.220.50: connected (1/0) Feb 15 20:57:51 teak spamd[326]: new entry 209.85.220.50 from to , helo mail-pa0-f50.google.com Feb 15 20:57:51 teak spamd[12533]: 209.85.220.50: disconnected after 96 seconds. Feb 15 21:01:16 teak spamd[12533]: 209.85.220.41: connected (1/0) Feb 15 21:02:47 teak spamd[326]: new entry 209.85.220.41 from to , helo mail-pa0-f41.google.com Feb 15 21:02:47 teak spamd[12533]: 209.85.220.41: disconnected after 91 seconds. Feb 15 21:22:24 teak spamd[12533]: 209.85.220.44: connected (1/0) Feb 15 21:24:00 teak spamd[326]: new entry 209.85.220.44 from to , helo mail-pa0-f44.google.com Feb 15 21:24:00 teak spamd[12533]: 209.85.220.44: disconnected after 96 seconds. Feb 15 21:54:07 teak spamd[12533]: 209.85.220.54: connected (1/0) Feb 15 21:55:42 teak spamd[326]: new entry 209.85.220.54 from to , helo mail-pa0-f54.google.com Feb 15 21:55:43 teak spamd[12533]: 209.85.220.54: disconnected after 96 seconds. Feb 15 22:45:57 teak spamd[12533]: 209.85.220.52: connected (1/0) Feb 15 22:47:32 teak spamd[326]: new entry 209.85.220.52 from to , helo mail-pa0-f52.google.com Feb 15 22:47:33 teak spamd[12533]: 209.85.220.52: disconnected after 96 seconds. Feb 15 23:50:00 teak spamd[12533]: 209.85.220.50: connected (1/0) Feb 15 23:51:36 teak spamd[12533]: 209.85.220.50: disconnected after 96 seconds. Feb 15 23:52:09 teak spamd[18136]: queueing add of 209.85.220.50 Feb 15 23:52:09 teak spamd[18136]: whitelisting 209.85.220.50 in /var/db/spamd Feb 16 00:11:02 teak ungrey-robins: 209.85.160.177 mail-yk0-f177.google.com. scored 18 (granted grace) Feb 16 00:11:03 teak ungrey-robins: 209.85.220.41 mail-pa0-f41.google.com. scored 18 (granted grace) Feb 16 00:11:03 teak ungrey-robins: 209.85.220.52 mail-pa0-f52.google.com. scored 18 (granted grace) Feb 16 00:11:04 teak ungrey-robins: 209.85.220.44 mail-pa0-f44.google.com. scored 17 (granted grace) Feb 16 00:11:05 teak ungrey-robins: 209.85.220.54 mail-pa0-f54.google.com. scored 18 (granted grace) Feb 16 00:11:05 teak ungrey-robins: spamdb whitelisted: 209.85.160.177 209.85.220.41 209.85.220.52 209.85.220.44 209.85.220.54 Feb 16 00:44:18 teak spamd[12533]: 209.85.220.43: connected (1/0) Feb 16 00:45:53 teak spamd[326]: new entry 209.85.220.43 from to , helo mail-pa0-f43.google.com Feb 16 00:45:53 teak spamd[12533]: 209.85.220.43: disconnected after 95 seconds. Feb 16 00:58:13 teak spamd[18136]: queueing deletion of 209.85.220.50 mail-pa0-f50.google.com Feb 16 01:03:13 teak spamd[18136]: queueing deletion of 209.85.220.41 mail-pa0-f41.google.com Feb 16 01:24:14 teak spamd[18136]: queueing deletion of 209.85.220.44 mail-pa0-f44.google.com Feb 16 01:56:18 teak spamd[18136]: queueing deletion of 209.85.220.54 mail-pa0-f54.google.com Feb 16 02:16:56 teak spamd[12533]: 209.85.220.45: connected (1/0) Feb 16 02:18:31 teak spamd[326]: new entry 209.85.220.45 from to , helo mail-pa0-f45.google.com Feb 16 02:18:32 teak spamd[12533]: 209.85.220.45: disconnected after 96 seconds. Feb 16 02:48:20 teak spamd[18136]: queueing deletion of 209.85.220.52 mail-pa0-f52.google.com Feb 16 04:11:03 teak ungrey-robins: 209.85.220.43 mail-pa0-f43.google.com. scored 17 (granted grace) Feb 16 04:11:03 teak ungrey-robins: 209.85.220.45 mail-pa0-f45.google.com. scored 18 (granted grace) Feb 16 04:11:04 teak ungrey-robins: spamdb whitelisted: 209.85.220.43 209.85.220.45 Feb 16 04:16:37 teak spamlogd[12344]: inbound 209.85.220.45 Feb 16 04:16:37 teak postfix/postscreen[7556]: CONNECT from [209.85.220.45]:34165 to [78.33.153.148]:25 Feb 16 04:16:38 teak postfix/dnsblog[24767]: addr 209.85.220.45 listed by domain hostkarma.junkemailfilter.com as 127.0.0.3 Feb 16 04:16:38 teak postfix/dnsblog[24767]: addr 209.85.220.45 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 Feb 16 04:16:38 teak postfix/dnsblog[28261]: addr 209.85.220.45 listed by domain list.dnswl.org as 127.0.5.1 Feb 16 04:16:38 teak postfix/dnsblog[28261]: addr 209.85.220.45 listed by domain rep.mailspike.net as 127.0.0.18 Feb 16 04:16:38 teak postfix/dnsblog[16607]: addr 209.85.220.45 listed by domain score.senderscore.com as 127.0.4.97 Feb 16 04:16:41 teak postfix/postscreen[7556]: PASS NEW [209.85.220.45]:34165 Feb 16 04:16:41 teak postfix/smtpd[314]: connect from mail-pa0-f45.google.com[209.85.220.45] Feb 16 04:16:42 teak postfix/smtpd[314]: 3q48Bf2xbNzQM: client=mail-pa0-f45.google.com[209.85.220.45] Feb 16 04:16:42 teak postfix/cleanup[22524]: 3q48Bf2xbNzQM: message-id=<001201d16833$340727c0$9c157740$@gMail.com> Feb 16 04:16:42 teak postfix/qmgr[805]: 3q48Bf2xbNzQM: from=, size=7204, nrcpt=1 (queue active) Feb 16 04:16:43 teak postfix/smtpd[314]: disconnect from mail-pa0-f45.google.com[209.85.220.45] Feb 16 04:16:43 teak dovecot: lmtp(8114): Connect from local Feb 16 04:16:43 teak dovecot: lmtp(8114, redacted): h4NJCquiwlayHwAANm01jw: sieve: msgid=<001201d16833$340727c0$9c157740$@gMail.com>: stored mail into mailbox 'INBOX' Feb 16 04:16:43 teak postfix/lmtp[394]: 3q48Bf2xbNzQM: to=, relay=teak.britvault.co.uk[private/dovecot-lmtp], delay=1.4, delays=0.46/0.07/0.52/0.35, dsn=2.0.0, status=sent (250 2.0.0 h4NJCquiwlayHwAANm01jw Saved) Feb 16 04:16:43 teak dovecot: lmtp(8114): Disconnect from local: Successful quit Feb 16 04:16:43 teak postfix/qmgr[805]: 3q48Bf2xbNzQM: removed Feb 16 04:46:27 teak spamd[18136]: queueing deletion of 209.85.220.43 mail-pa0-f43.google.com Feb 16 06:18:32 teak spamd[18136]: queueing deletion of 209.85.220.45 mail-pa0-f45.google.com Feb 16 08:16:41 teak postfix/anvil[16546]: statistics: max connection count 1 for (smtpd:209.85.220.45) at Feb 16 04:16:41