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Slow email delivery with new shared hosting provider - where is the delay?

Posted by mobidutch, 04-30-2017, 01:51 AM
I recently switched my personal domain with 5 email boxes from 1&1 to DomainRacer. The switch went pretty smooth, but I noticed that email delivery has gotten a little slower. If I send myself an email from a GMail account, it takes between 1-2 minutes to arrive while that used to take less than 30 seconds. I can live with that. However, some emails arrive WAY to slow, such as pretty much any order confirmation from Amazon.com. I am including the SMTP header from a recent email below. As you can see it was sent at 9:00pm Central time, but it did not arrive in my Webmail Inbox until 12:30am Central, which is 3.5 hours later! I am not familiar with interpretation of SMTP headers, does it provide any clues as to where the delay might be? Thanks! Return-Path: <2017043002003654e9503913fc478181b9186f06c0p0na@bounces.amazon.com> Delivered-To: my@email.net Received: from server87.iseencloud.com by server87.iseencloud.com (Dovecot) with LMTP id EEocKRB1BVn0oAIATIjfFQ for ; Sun, 30 Apr 2017 07:24:32 +0200 Return-path: <2017043002003654e9503913fc478181b9186f06c0p0na@bounces.amazon.com> Envelope-to: my@email.net Delivery-date: Sun, 30 Apr 2017 07:24:32 +0200 Received: from a13-7.smtp-out.amazonses.com ([54.240.13.7]:34634) by server87.iseencloud.com with esmtps (TLSv1:ECDHE-RSA-AES128-SHA:128) (Exim 4.89) (envelope-from <2017043002003654e9503913fc478181b9186f06c0p0na@bounces.amazon.com>) id 1d4hLU-000imX-Ek for my@email.net; Sun, 30 Apr 2017 07:24:32 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; ; d=amazon.com; t=1493517638; h=From:Reply-To:To:Message-ID: Subject:MIME-Version:Content-Type: Date; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; ; d=amazonses.com; t=1493517638; h=From:Reply-To:To:Message-ID: Subject:MIME-Version:Content-Type: Date:Feedback-ID; From: "auto-confirm@amazon.com" Reply-To: auto-confirm@amazon.com To: my@email.net Message-ID: <0100015bbc969a6f-1afc0adb-caba-4e6e-ade0-2a9d1da9fb29-000000@email.amazonses.com> Subject: Your Amazon.com order of "...". MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_11002537_2054460397.1493517638235" X-AMAZON-MAIL-RELAY-TYPE: notification Bounces-to: 2017043002003654e9503913fc478181b9186f06c0p0na@bounces.amazon.com X-AMAZON-METADATA: CA=C1LV9CQ6HFY688-CU=A1YD5JFCMOF0F9-RI=A2MXENL0TGYZPS X-Original-MessageID: Date: Sun, 30 Apr 2017 02:00:38 +0000 X-SES-Outgoing: 2017.04.30-54.240.13.7 Feedback-ID: 1.us-east-1.ZHcGJK6s+x+i9lRHKog4RW3tECwWIf1xzTYCZyUaiec=:AmazonSES
Posted by LJSHost, 04-30-2017, 06:03 AM
This could be caused by a number of things, but email should be more or less instant delivery. You have no errors in the header so I would say it's an issue at the sending or receiving point. Could be due to overloading and a mail backlog at either server. If a Domainracer server is receiving/sending your mail now I would say this is where the problem is if it was faster before with 1&1.
Posted by BeZazz, 04-30-2017, 06:21 AM
Maybe greylisting is enabled at your end?
Posted by mobidutch, 04-30-2017, 12:28 PM
Thank you both for your replies. Greylisting WAS enabled in cPanel, so I disabled it for now. I did some testing with Amazon.com by temporarily adding a product info subscription, and the confirmation email arrived within 30 seconds. So this is looking promising...thank you! Last edited by mobidutch; 04-30-2017 at 12:37 PM.