MailSuite Pro documentation

Preventing clickjacking attacks with X-Frame-Options header

Starting from version 7.4.1 of MailSuite Pro, you can disallow embedding the product interface into IFrame, which can be helpful toward preventing clickjacking attacks. This is done by forcing specific value of X-Frame-Options HTTP header, you can read more on this at this Wikipedia page.

If you wish to disallow embedding MailSuite Pro interface into IFrame, add the following item into array defined in data/settings/config.php file:

'labs.x-frame-options' => 'SAMEORIGIN',

Note that even with this setting applied, you will still be able to use the embedding yourself, as long as MailSuite Pro and the page containing IFrame are within the same domain.