The second email setting is using a custom email address as the sender email. This should suppose to work. If you don't receive the form emails to your Gmail Address which is the current recipient, then there must be something wrong with the settings. I believe you're adding the custom sender through verification method, please try using Mandrill's SMTP instead: https://www.jotform.com/help/236-How-to-use-Mandrill-to-Send-Emails-From-Your-Own-Email-Address.
Hope this helps!