What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I presume that you mean the email notification body?
If so you should be able to just press enter to add new line. Once the email is submitted the enter would be passed down in form of \n.
If that is not the case, then please try with \n instead of /n or \r\n.
Do let us know how it goes.