What email provider are you using? Also, are you using a client such as Outlook with that email provider? Additionally, what browser are you using?
Hopefully, the answer to these questions will allow me to provide you with a good answer.
What resolution is your monitor set to?
Is this a problem for all emails or just emails from a couple specific senders?
I suspect it's only for a couple senders and it's because of the way they send emails.
View attachment 768
If you click "printer friendly version" the email should be resized to fix your screen.
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