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confirmation emails are send repeatedly

Posted: May 16, 2019 at 1:14 pm


May 16, 2019 at 1:14 pm


Our customers get send multiple confirmation emails, whilst they have only ordered once. Postman is installed, the Instant Payment Notification is reachable without login and the site is nog in maintenance mode. How can I fix this? For a customer to get 11 duplicate confirmation emails spread over the day, is very bad for business..


  • Support Staff

May 16, 2019 at 3:52 pm

Hi there,

If you go to Event Espresso -> Messages -> Message activity

Can you see those duplicate emails shown in the list there?


May 16, 2019 at 11:56 pm

Yes, they are shown there.


  • Support Staff

May 17, 2019 at 5:09 am

Ok, so what you say the confirmation email, is that the ‘Payment confirmation’ email or the ‘Registration Approved’ message?

If you view the Mollie transaction on their site it shows you a log of the requests sent to your site for the payment, is there multiple requests shown there?


May 17, 2019 at 5:57 am

It’s the Payment approved message. All others were already disabled.

In Mollie it shows met a whole host of messages like this:
“Webhook failed (Operation timed out after 15000 milliseconds with 0 bytes received)16 May 2019 at 15:40”

The timing of these correspond with the payment approved message from EE.


  • Support Staff

May 17, 2019 at 6:22 am

OK, so that’s likely the problem.

If Mollie doesn’t receive a status code of 200 in the response from the transactions page, it retires until it does (or however many times their server is set to retry) and as it’s a valid payment but the request is timing out and hitting your site multiple times, it’s triggering multiple payment emails.

Your transactions page takes over 30 seconds to load when I view it.

TTFB (time to first byte) is almost 23 seconds, that’s the amount of time it takes for your server to pull in the data for database and start to send the response to the browser.

From the error above, Mollie has the timeout set to 15 seconds so that page needs to load faster.

What type of hosting are you using? Is the server under high load?

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Status: closed

Updated by  Tony 4 months ago ago

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