使用Phpmailer发送邮件，仅限BCC，隐藏TO标题字段

Question

I'm using Phpmailer to send an email to multiple accounts using BCC.

I don't want "To:" field to be seen among the headers, but I think it is mandatory, because if I omit it I got this error:

Email error: You must provide at least one recipient email address

As a workaround I use my sender email under

$mail->addAddress ([e-mail]);

but I'd like to send only BCC recipes.

Is it possible to do so or must I loop through all the emails recipe and send them one at a time?

Thank you in advance.

Answer 1

You can use undisclosed-recipients:;

$mail->AddAddress("undisclosed-recipients:;");
$mail->AddBCC([e-mail]); //there may be foreach loop