Ensure links sent in emails are obvious.
I had am an email come in from FedEx, which in the older version had a very obvious way of telling how to access return labels (the link to print them was highlighted a different colour and underlined, like a link). It looks like, however, your new inbox doesnt see it as such, and just showed all normal text when I was looking through the email. I had to mouse over multiple things to figure out whats up, and found the link to my labels by accident.
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