• don't add too much emojis ( it'll make the copy unprofessional)
• don't make the hook too spammy, eg:- Click here, Free (product) etc.
• don't make the body so long
• make points with space from the other points which is more easy to read
• make the main part some big ( others can be small)
• hook is the main part , because it make the viewer open the email
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