PHPMailer 5.2.26

PHPMailer version 5.2.2

PHPMailer version 5.2.1

PHPMailer version 5.2.0

PHPMailer 6.0.1

PHPMailer 6.0.0

5.2.24

5.5.23

Generate a warning when using a buggy PHP version, see PHPMailer#953