Character Sets

Zend\Mail\Message does not check for the correct character set of the mail parts. When instantiating Zend\Mail\Message, a charset for the e-mail itself may be given. It defaults to iso-8859-1. The application has to make sure that all parts added to that mail object have their content encoded in the correct character set. When creating a new mail part, a different charset can be given for each part.

Note

Only in text format

Character sets are only applicable for message parts in text format.

Usage in CJK languages

The following example is how to use Zend\Mail\Message in Japanese. This is one of CJK (aka CJKV) languages. If you use Chinese, you may use HZ-GB-2312 instead of ISO-2022-JP.

//We suppose that character encoding of strings is UTF-8 on PHP script.
function myConvert($string) {
    return mb_convert_encoding($string, 'ISO-2022-JP', 'UTF-8');
}

$mail = new Zend\Mail\Message('ISO-2022-JP');
// In this case, you can use ENCODING_7BIT
// because the ISO-2022-JP does not use MSB.
$mail->setBodyText(
    myConvert('This is the text of the mail.'),
    null,
    Zend\Mime\Mime::ENCODING_7BIT
);
$mail->setHeaderEncoding(Zend\Mime\Mime::ENCODING_BASE64);
$mail->setFrom('somebody@example.com', myConvert('Some Sender'));
$mail->addTo('somebody_else@example.com', myConvert('Some Recipient'));
$mail->setSubject(myConvert('TestSubject'));
$mail->send();