It is an e-mail that is blocked by a system for various reasons, like being from a suspicious address, being spam, being from an address that is on a blocked list. The e-mail may then be sent back to where it came from, and so is not delivered to the intended recipient.
it means the email has to be a real email
It means that you dropped something or you threw it and it fell.
email means when u hav an email so u can write 2 peeps
it means that is your main email that you use for emailing things
If a horse dropped in the hocks it means that the horse dropped on its ankles. The hocks of a horse is the horses ankles.
It is the list of people to whom you are sending the email.
it means use a backup email
It means constantly check email
it means use a backup email
draft email particularly means drafting or writing an email which is of course an old word derived from "draft a letter". email draft means, an email written and saved in drafts folder of the mail account to send it later.
If you are asking what it means, it means "electronic."
it means if you switched your email address!