Separate the boxes to pick the email so they easier to select.
When picking several or a lot of emails at a time to send to spam or delete, there are a lot of times that when I thought I clicked on the box but was just to the left of it and it opened the email. This then opens a potentially unsafe email. Also, it is very frustrating when you have 30+ emails selected already and then you have to start over. Make the box separate so there is no way to accidently open the email instead of selecting it. I do not have this problem when using Gmail or other mail services.
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