Hi Pierre,
I just made a test :
- create a collection with text column
- add a dataset to the page pointing to this collection
- add a repeater to the page, pointing to the dataset
- linked the text to the text column
- added an email adress in the first row of the collection
→ result (when I publish the site) : the mailto: is automatically added to the text filed content when it is an email.
Do you happen to be able to reproduce this simple behavior?