Today one of our app got rejected due to email button for enquiries and info label with company name and telephone number (not clickable) . They are saying this is not compliance with paragraph 11.13.
Apps that link to external mechanisms for purchases or subscriptions to be used in the app, such as a “buy” button that goes to a web site to purchase a digital book, will be rejected
Interesting thing is they have approved our previous app with same functionality.
I feel this is a misjudgment and putting email button is compliance with Apple rules.
I do appreciate you opinion.
Apple's ways are mysterious and capricious. I suspect this is just an over zealous reviewer, and would be approved if you appealed (or just submitted another version with a few more changes and got a different person to check it).
However, if you want an "e-mail enquiry" system that will surely comply with their rules, why not use the MFMailComposeViewController to display the mail sheet in-app? There is no link to an external site then, so you cannot be accused of trying to siphon off users.