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1 post

Wannabe Geek


  Reply # 2126953 15-Nov-2018 08:59
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Logs show delay is on Amazon's end:

 

 

 

Message sent: Mon, 12 Nov 2018 17:23:24 +1300 (04:23 +0000)
Message received: Mon, 12 Nov 2018 19:00:21 +1300
by alpha.kiwiwebhost.co.nz (received from: a13-14.smtp-out.amazonses.com)

 

 

 

Updated 9:30AM -

 

After further investigation from the system guys, we found that we had not noticed this new IP address from Amazon and as such Greylisting was kicking in and delaying the message:

 

2018-11-12 17:28:29 H=a13-14.smtp-out.amazonses.com []:52668 X=TLSv1.2:ECDHE-RSA-AES128-SHA256:128 CV=no F=<20181112042324ed4e5eda5d8240fdb82440537e00p0na@bounces.amazon.com> temporarily rejected RCPT <zzzzz@zzzzz.co.nz>: Deferred due to greylisting. Host: '' From: '20181112042324ed4e5eda5d8240fdb82440537e00p0na@bounces.amazon.com' To: 'zzzzz@zzzzz.co.nz' SPF: 'unchecked'

 

 

 

We have updated this IP address as Amazon and are checking all our public Amazon IP addresses are up to date, so there should be no delays going forward.

 

 

 

Sorry for the confusion and frustrations.


pdh



81 posts

Master Geek
+1 received by user: 18


  Reply # 2127174 15-Nov-2018 13:35
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Well, thanks for confirming my diagnosis ;-)

 

Three concerns about Orcon's processes kind of leap out...

 

(1) If your logging system makes you confident that the delay is at Amazon's end - and then you find it's at your end...
It looks like your logging system could do with an over-haul.

 

(2) If you are greylisting most new addresses until proven innocent, and this adds hours to email delivery...
That's rather a problem for me.

 

(3) Given Amazon's explosive growth rate, I would assume that they might be adding new email servers daily.
Given that there are strong clues to their identity in the server names - couldn't ID of new Amazon sources be automated ?


 
 
 
 


defiant
694 posts

Ultimate Geek
+1 received by user: 332

Lifetime subscriber

  Reply # 2127206 15-Nov-2018 14:13
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I was going to suggest that this sounds exactly like greylisting in action, never been a fan of greylisting for this exact reason


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