Using a common mailer function sends duplicate emails via Mailgun. Below is a streamlined helper that sends one email per call:
function mgDispatch($info) {
$params = [
'from' => 'NoReply <[email protected]>',
'to' => $info['emailAddr'],
'subject' => 'Notification',
'body' => $info['messageText']
];
return curl_exec('https://api.mailgun.net/v3/example.org/messages');
}
try reinitializin the curl handler each time instead of reusing it - sometimes that caching causes dupes. also check mailgun api settings for any auto-resend config. hope that helps!
I have seen similar issues where duplicate emails were being sent unexpectedly. In my experience, the problem sometimes stemmed from the function being invoked more than once because of race conditions in the asynchronous environment. I ended up introducing a unique identifier for each request along with more verbose logging to verify each call. It turned out that under heavy load, the system triggered some duplicate processes. Reviewing the entire email dispatch mechanism and adding proper safeguards helped identify the device where the system inadvertently re-called the mailing function. This approach helped in ensuring only one email reaches the intended recipient per request.
I encountered a similar issue in my project, where duplicates were caused by overlapping processes triggering the same function call. In my case the problem was not only linked to the API call itself but also how the server handled minor network errors. I found that integrating a check to confirm if the email was already queued before making the API call significantly reduced duplicates. Additionally, adjusting the error handling to avoid retries on minor failures helped. Ensuring that the call was idempotent became crucial in maintaining one email per request.