[akvadrako]

That does say they don't read your email for ad personalisation, but it doesn't say they don't read your email.

Reading your email for data gathering is their entire business model so if they don't explicitly say they don't, you should assume they do.

[icebraining]

Their business model is reading your email for ad personalization. How else would they make money from reading it?

[akvadrako]

Marketing research.