Last week (May 6 approx to date), some of the emails i used to send (successfully) failed in rendering in outlook mobile. I haven’t changed anything in the html code. I want to know if outlook changed its rendering rules and if ther’s somewhere i can check for these kind of changes. Thanks!

I have create an email HTML template using some online website. I modified this template to fit my needs by adding some placeholders, altering some added columns, and rows, repeating some elements…etc. so that later in my application, I replace these placeholders with the proper values and then I send it.