I recently sent out our first monthly newsletter to community members and design issues were noticed in that email. When I sent the test email to admins, everything looked fine. I have attached a snapshot of it for your ref. When we launched the campaign, the email just looked too wide at the receiver’s end. Has anyone experienced this? Wondering what I did wrong here.
This is the test email snapshot where banners look fine 
This is the final email that was delivered to community members and you can see the hero banner looks too wide
