A message that doesn’t get delivered promptly is said to have bounced. Emails can bounce for more than 30 reasons: the email address is incorrect or has been closed; the recipient’s mailbox is full, the mail server is down, or the system detects spam or offensive content. See hard bounce and soft bounce.
Advertise Do not Spam
There is a fine line between advertising and spam and unfortunately many business owners do not understand the difference between the two.
