Even though it may just be a form-letter welcome note from your ISP, getting your first real email message is a thrill because someone out there knows your email address.
Each time your mail program collects your mail, it deposits the fresh batch of new messages into your mail program's inbox. Until you delete or move the message, it stays there. To help you tell the old from the new, most mail programs highlight the new mail's subject lines with bold text or colored dots.
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