Try adding headers to email, for example from PHP mail Manual example 2
<?php $to = ' nobody@example.com '; $subject = 'the subject'; $message = 'hello'; $headers = 'From: webmaster@example.com ' . "\r\n" . 'Reply-To: webmaster@example.com ' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail($to, $subject, $message, $headers); ?>
If you want this to be an email with a name, this will work
$headers .= 'From: Birthday Reminder < birthday@example.com >' . "\r\n";
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