It all started when we moved the site and the email sending to a new server. Since then the new sale emails are sent twice, both to the customer and store owner. We are running Magento ver.

I tried out all the solutions described here, here and here.

Here is what I know so far:

  • there are no orphan records left on the Recipients table
  • there are no duplicate emails created in the database
  • cron is running and there are no duplicate crontasks created
  • I have set the copy that is sent to the store to BCC, I tried the Separate copy method but it's the same issue
  • Initially we used SMTP pro extension, as it was required by the old host company, the issue started when I changed these settings to the new server's settings. I disabled and uninstalled the extension, but it keeps sending duplicate emails.
  • There is a little difference between the two emails:

    1. visually the payment method is missing from one the emails
    2. comparing the two sources I found the following differences in the head section:

      2: Received: by with SMTP id 18csp557327lfz;
      3: Thu, 9 Jun 2016 14:08:03 -0700 (PDT)
      4: X-Received: by with SMTP id k65mr9670671qge.27.1465506483853;
      5: Thu, 09 Jun 2016 14:08:03 -0700 (PDT)
      2: Received: by with SMTP id 18csp557131lfz;
      3: Thu, 9 Jun 2016 14:07:25 -0700 (PDT)
      4: X-Received: by with SMTP id m97mr11482818qgd.41.1465506445409;
      5: Thu, 09 Jun 2016 14:07:25 -0700 (PDT)
      8: by mx.google.com with ESMTPS id s5si4428297qkc.169.2016.
      8: by mx.google.com with ESMTPS id v124si1449328qhc.120.2016.
      16: Message-Id:        
      <[email protected]>
      16: Message-Id:
      23: bh=dkKnBT4pJtbsDHYzbIX730M5P1u+x/BPP7K3dCdYeCE=; b=bKu0SmXGmuiU2GyuQbIcrR7OSH CRfnmNgcu8fGMu2ep8IEisxwyUQfFqLr7u+Exv7MBqtinYdTgFs1C6RuPJUJoEDKDLQAgd6tz3Joe O5UObhunwfkEj1r8hLQofHr0ohyq8aaCGwAe2QP6pJaIAaLhouo2Otwq/e/KnHL7Xt77D6HYKFyr8 ep3MBAVnRld4dBVN0InxOa1L3IACKFwn2x5nHsxvoxYot5+ECkfOsKGSkL7p/LHs4VLhTL1CE4BoI wk3r0u5WL7FRFWaHJyKp8Ey5ZNOvtdY0/bU9jgCOyuXLEmPbyuobGMXFHbUwjDKv8LD0OAjlqY7eZ Ai1YUnTg==;
      29: Received: from c11-92.tlh.ro ([]:59678 helo=localhost)
      23: bh=Mfeb2i5EeCiNoEabwwaBRo8bnT4HLAR5z32ZZKIh8oo=; b=Izrj7xp7XVH0efHVJAFKpOIl1Y PNTYKwXkPmlu0QW9CNq0XNha3W1Rf/TD3qNMQxvkbn25G71nOseLQxORPcBItPDp3QJWzi7t8mDUH wccJjVfIvHoq7T+tuhB2vp64g6IMGwQ7XoGXXDreoumLQxv2yk/CwRneEjgO3fuBJbtnSggVMVWM0 RY7I8rMgIvHUeveZxjcL+DMKP1k7cHXTFrQj/0jnFqnjMFw3FNKt5QOSZMG2/Wem3I/V5VzOI2iEV aAXtbxdhkI94nuRueQ3b2UndL6MpQVjK+nS4dwfp9KPYU+pAXVusvreLloSAhSw+kcWgsUBMmyIe8 AcxxJoxQ==;
      29: Received: from c11-92.tlh.ro ([]:59460 helo=localhost)
      32:     id 1bB7BJ-0005mx-Vc; Fri, 10 Jun 2016 00:08:02 +0300
      32:     id 1bB7Ah-0005mG-EH; Fri, 10 Jun 2016 00:07:23 +0300

It seems that it is creating two separate emails with different ID's for some reason. I am struggling with this for over a week now and I just can't find out what is wrong.

  • Just a quick update: checking the SMTP Pro logs, I found that there are two emails created for the customer and one that is sent to the store owner. Can anyone please give me a how to trace step-by-step the email creation procedure?
    – Andras
    Jun 12, 2016 at 11:47
  • Here is the cause of the problem: one email is sent with cron and the other is sent directly. How can I disable the direct sending and only use the cron?
    – Andras
    Jun 12, 2016 at 17:35

1 Answer 1


I am not sure there is an option for this. I had the same problem. It was caused by diverged php-fpm and php-cli configurations. PHP-FPM had Memcached as a caching backend activated and the memcached extension enabled. PHP-CLI had the same caching backend activated but had no memcached extension, which caused Magento to fall back to the File cache backend. I am not 100% sure why this happens, but I think the cache is somehow involved in the email sending process.

Maybe check if there is a similar problem with your hoster.

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