Veraltete Elemente

Global PHPMailer::$PluginDir

Should not be needed now there is an autoloader.

Global PHPMailer::$ReturnPath

Email senders should never set a return-path header; it's the receiver's job (RFC5321 section 4.4), so this no longer does anything. RFC5321 reference

Global PHPMailer::encodeQPphp ($string, $line_max=76, $space_conv=false)

Use encodeQP instead.

Global POP3::$CRLF

Use the constant instead

Global SMTP::$CRLF

Use the CRLF constant instead

Global SMTP::$SMTP_PORT

This is only ever used as a default value, so use the DEFAULT_SMTP_PORT constant instead

Global SMTP::$Version

Use the VERSION constant instead