In Internet usage, an email bomb is a form of net abuse consisting of sending large volumes of email to an address in an attempt to overflow the mailbox, overwhelm the server where the email address is hosted in a denial-of-service attack (DoS attack) or as a smoke screen to distract the attention from an important email messages indicating a security breach. In Internet usage, an email bomb is a form of net abuse consisting of sending large volumes of email to an address in an attempt to overflow the mailbox, overwhelm the server where the email address is hosted in a denial-of-service attack (DoS attack) or as a smoke screen to distract the attention from an important email messages indicating a security breach.