Hey, Something I've been trying to dois justify breaking away from the 600px frame that all mailers seem to use, Looking at my personal inbox I get emails from the Playstation which are 800px wide and then a fair few with are 700px wide. This raises the question of is 600 the right width still?

https://www.campaignmonitor.com/resources/will-it-work/width/
http://edmdesigner.com/blog/600-px-is-the-optimal-responsive-email-width-why

These two links suggest 600 is the max however I disagree, What does everyone here think?

Thanks, Looking forward to hearing your opinions!
Nick