Phpmailer No Sending To Certain Email Addresses

[Aaron4osu]

I have a form that sends a confirmation email to the user who filled out the form. It worked for a while then suddenly stopped working for my email address which I had been using to test the form. It still forms for some email address, just not one with a specific domain. Could their be any kind of spam filter issues for how I have it configured?

 

$mail->SetFrom('emailAddress', 'Name');$mail->AddReplyTo('emailAddress', 'Name');
$mail->AddAddress('emailAddress', 'Name');$mail->Subject = $subject;$mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->MsgHTML($requester_message);if(!$mail->Send()) {  echo "Mailer Error: " . $mail->ErrorInfo;} else {  //echo "Message sent!";} // end else