I’ve been using SwiftMailer for as long as I can remember because it’s, IMHO, a great library and far more logical than PHPMailer and “others”. While maintaining a PHP5 codebase for a rather large project, I ran into an issue while using ISO-8859-15 encoded data. Most people won’t care about ISO-8859-15 over ISO-8859-1 (“Latin1”), but since I live in Europe, I prefer to have support for the €uro character 🙂
To make a long story short, if you need SwiftMailer 5 to properly handle ISO-8859-15, look for a line in “MimePart.php” that looks like this:
if (!in_array($charset, array('utf-8', 'iso-8859-1', ''))) {
and change it to this:
if (!in_array($charset, array('utf-8', 'iso-8859-15', 'iso-8859-1', ''))) {
(Yes, the project will move to a PHP7 codebase at some not so distant point in the future.)