Notification emails not sending (sometimes!)

  • Resolved wizcomhosting

    (@wizcomhosting)


    4 years ago

    A very strange problem. I had a report that the notification emails wasn’t received for an order. I verified this so installed WP Mail Log plugin and resent the notifications for the last 4 orders. Two of which were not sent, two were.

    The not sent are consistent.

    What could possibly cause this?

    No emails, yes, I accept there are many logical reasons, all emails sent, yes, good but some sent and some not? truly bizarre.

Viewing 3 replies - 1 through 3 (of 3 total)
  • Thread Starter wizcomhosting

    (@wizcomhosting)

    Further to this, I changed the billing email address and it sent.

    The mail log error was “Could not instantiate mail function” which I know can be related to phpmailer authentication errors – but why sometimes!

    Hi @wizcomhosting,

    Typically, issues like this are due to an issue with the PHPmailer email server. This is a common issue with most web servers as they’re not optimized to send emails.

    I’d recommend using a SMTP plugin as they’re known to help with WordPress email issues.

    You can learn more about troubleshooting email and SMTP in our Email FAQ

    I hope this helps.

    We haven’t heard back from you in a while, so I’m going to mark this as resolved – if you have any further questions, you can start a new thread.

Viewing 3 replies - 1 through 3 (of 3 total)
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