PHPMailer 5.1 sends duplicatie mails when adding more than 1 receiver

Question

I'm using PHPMailer for a while now and never really had any problems, but last week I installed one of my CMS on a website and the client insisted on having 2 e-mails receiving the contents of the contact form of his website.

Ok, no problem I thought, just adding an e-mail address using the $phpmailer->AddAddress() function. However, adding a second receiver is causing PHPMailer to send the mail twice to both receivers. I tried adding a third receiver to see if I got it three times, but this didn't change anything. So adding 2+ receivers is causing PHPMailer to send the message twice to all receivers.

There's nothing strange in my code. It's a basic PHPMailer example:

$mail             = new PHPMailer();
$mail->AddReplyTo("[email protected]","First Last");
$mail->SetFrom('[email protected]', 'First Last');

$mail->AddAddress("[email protected]");
$mail->AddAddress("[email protected]");
$mail->Subject    = "PHPMailer Test Subject via mail(), basic"; 

$mail->Send();

I've ran out of options. I have absolutely no clue where it's going wrong.

Thanks in advance

--

Just some random thought: I noticed the mailer is defaulted by iso-8859-1 and my site is running utf8. Can there be a "silent" redirect by the server itself?

//EDIT, that ^^ solved my problem

//EDIT2:

Ok, it did not.. today the script worked fine (just 1 mail with 2 receivers) but a moment ago the strange behavior started again. Any tips?

// Solution:

ok, I feel quiet stupid! The answer Zulkhaery Basrul came closest to the actual problem! This is what happened: I was sending an e-mail to multiple addresses in the "to" field. For example:

To: A, B, C

Both A/B are my own adresses. In outlook I had some message rules to put e-mails with certain addressees inside a specific folder. Both A and B had this rule.

When I recieved my e-mail, both mails contained both mailaddresses in the to-field. Causing both of the mails to meet the rule requirements for both rules. Thus keeping the original in one folder and creating a copy in the other (twice).

Thanks for thinking tho :)

Answer 1

You can use $SingleTo property.

From PHPMailer docs:

$SingleTo

Provides the ability to have the TO field process individual emails, instead of sending to entire 'TO addresses'

$mail = new PHPMailer();

$mail->SingleTo = true; //will send mail to each email address individually


$mail->AddReplyTo("[email protected]","First Last");
$mail->SetFrom('[email protected]', 'First Last');

$mail->AddAddress("[email protected]");
$mail->AddAddress("[email protected]");
$mail->Subject    = "PHPMailer Test Subject via mail(), basic"; 

$mail->Send();

Answer 2

Try to add after

$mail->send();


$mail->ClearAddresses();