Patent attributes
An unintended recipient initiates a reply to the sender and all other recipients of an original email. The reply contains a “hot button” feature in the email client application to enable the email client application of the recipient of the reply to auto designate the unintended recipient in the recipient of the reply's address book. When the recipient of the reply's email client application creates a future email, it is determined if the recipient of the future email has been designated as a potential unintended email recipient. If so, the email client generates a notification that the future email recipient potentially is an unintended recipient of the future email. The designation enables notification means for avoidance of initiating future erroneous emails addressed to an unintended recipient.