There are 2 key points from this:
It's a great example of Chomskian flak AND anti-left-wing (anti-communism when the Manufacturing Consent book was originally published)
The legal case was taken up only after IPSO had ruled on the complaint. The IPSO response was deemed unsatisfactory.
Sunday Telegraph pays damages to mosque chief over Corbyn article https://www.theguardian.com/media/2018/may/09/sunday-telegraph-pays-substantial-damages-to-london-mosque-chief?CMP=Share_AndroidApp_Blogger