FYI further investigation reveals that the problem is in what Constant Contact sends out. I don’t read HTML and CSS well, but as far as I can tell, CC sends out max-width 480 and I have demonstrated on multiple platforms that the resizing problem happens with the original emails in email clients and browsers before they go through Postie to our website. This problem gets overridden in the emails themselves with special code for one column mobiles but that special code for mobiles isn’t preserved after the html is posted to the website. Not sure there is anything to do about this but if you have suggestions or believe you could deal with it in custom work or an add-on, we’d like to know.