Sorry I cannot help with your issue, but I can recommend the "Nine" app for email. I struggled to find a email client that had all the features I needed/wanted and Nine covers all of them including contacts and calendars.
Hope that helps, good luck.
I asked a customer service rep that same question and she told me that even though my order made no mention of a sim card one would be in the phone. Whether or not that's true is truly anyone's guess.
iPhone 5 - Simply bored with it, I've had iPhones since 2008 just wanting some strange I guess. Lol
My only concern is my work email and if the Note 4 can handle as well as my iPhone.