Gmail delivery delays when using a Coherent Path template are multifaceted, stemming from template content issues flagged by spam filters, problems within the Email Service Provider (ESP), low sender reputation, and various technical factors. These technical factors include routing problems within Google's infrastructure, greylisting, DNS issues, server load, SMTP errors, and incorrect email authentication. Sending speed, IP/domain warmup, and detailed header analysis are also crucial considerations for diagnosing and resolving these delays.
10 marketer opinions
Gmail delivery delays when using a Coherent Path template can stem from a variety of factors. Issues range from sender reputation problems (low reputation, being blacklisted) to content-related triggers (spam filter flags within the template, high image sizes). Technical factors like DNS issues, server load, greylisting, and incorrect email authentication (SPF, DKIM, DMARC) also play a role. Finally, sending speed and new IP/domain warmup are important considerations, especially for bulk senders.
Marketer view
Email marketer from Gmass suggests throttling your sending speed, particularly when sending to Gmail. Gmail may delay messages from senders sending large volumes too quickly.
18 Mar 2022 - Gmass
Marketer view
Email marketer from Reddit explains that Gmail delivery issues are sometimes related to specific content triggers within your templates. Try A/B testing your email with different content to see if you can isolate what's causing the delay.
30 Sep 2022 - Reddit
3 expert opinions
Gmail delivery delays when using a Coherent Path template could be due to Google disliking the template's content after inspecting it (failing after DATA), a delay occurring within the Email Service Provider (ESP) before Gmail receives the email, or sender reputation issues. Analyzing message headers is essential for pinpointing the source of the delay.
Expert view
Expert from Spam Resource, Laura Atkins, explains that sender reputation significantly impacts delivery speed. If your domain or IP has a poor reputation due to past spam complaints or blacklisting, Gmail might delay your emails or send them to the spam folder. Monitor your reputation and take steps to improve it if necessary.
29 Aug 2024 - Spam Resource
Expert view
Expert from Word to the Wise suggests using the message header to diagnose delays. The 'Received:' lines in the header provide timestamps that show how long each server took to process the email. This allows pinpointing where the delay occurred (sender, intermediary, or recipient server).
29 Apr 2023 - Word to the Wise
3 technical articles
Gmail delivery delays can stem from several technical factors. Google identifies routing issues, filtering processes, and transient server problems as potential causes. Greylisting, a technique where unfamiliar senders are temporarily rejected, can also introduce delays. Tools like MXToolbox can help identify SMTP errors or other server configuration problems that might be causing delivery issues.
Technical article
Documentation from RFC-Editor explains that greylisting is a method of temporarily rejecting an email from an unknown sender. A legitimate server will, according to specification, try again after a delay. A spammer will, usually, give up after the first try, since they will often be sending out many emails and cannot afford to wait. This can cause delays.
12 May 2023 - RFC-Editor
Technical article
Documentation from MXToolbox explains that using their tools, one can check for SMTP errors or other issues that might indicate problems with the mail server software or configurations. These errors can result in delivery delays.
15 Nov 2022 - MXToolbox
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