On Wed, Jul 17, 2019 at 09:33:54AM -0700, Greg Newby wrote:
Sorry for my slow response. I purposely waited an extra day+ in case there are any other complaints or signs of trouble. Also, maybe you got a response back form cock.li already?
This is mostly just my response to Juan, but what's below might be of general interest for anyone who has had trouble getting messages to or from the list:
On Mon, Jul 15, 2019 at 08:07:48PM -0300, Punk wrote:
On Mon, 15 Jul 2019 14:33:41 -0700 Greg Newby <gbnewby@pglaf.org> wrote:
I found lots of log entries where your messages were accepted:
Jul 12 13:13:31 mail postgrey[2135]: action=pass, reason=triplet found, client_name=mx1.cock.li, client_address=185.10.68.5, sender=punks@tfwno.gf, recipient=cypherpunks@lists.cpunks.org
(185.10.68.5 is mx1.cock.li)
The first time a message arrives, the triplet "CLIENT_IP" / "SENDER" / "RECIPIENT" had not been seen before within postgrey's memory. So, it sends a message back to try again later. And then, a few minutes later, the MTA tries again and the message is delivered.
I see. And how often are the entries in the list of accepted senders removed? How often does postgrey 'forget' about a triplet it had validated? Every few hours?
The man page says it is 35 days.
This would explain why "may be every month", messages are noticeably "paused" rather than forwarded on through - I've seen this quite a few times. Knowing the reason is useful - those "wtf" feelz can be readily set aside :)
In your experience, this means that if a message is posted (same triplet of IP, sender, recipient) it should not be greylisted unless 35 days have passed since the prior message was sent.
One thing that happens a lot with big companies is that they use a bunch of different IP addresses. That creates problems for greylisting, since the triplet is not duplicated, so keeps getting greylisted. I did not see evidence that cock.li is doing this, though: they just have two MX servers, and the addresses seem static. ...