Patent ID: 8230019

Claim:
A method for alerting e-mail users comprising: when a failed delivery e-mail message, corresponding to a first e-mail message, is received, setting an indicator in an entry in one of an address book, an address database, and an address cache associated with an address of an addressee corresponding to the first e-mail message; displaying said address in conjunction with a perceptive cue in response to said indicator being set; wherein, when said indicator is set, said indicator is operable for clearing in response to said address becoming accessible; and clearing said indicator in response to subsequently receiving a second e-mail message originating from the address of the addressee corresponding to the failed delivery message, wherein the second e-mail message does not correspond to the first e-mail message; and clearing said indicator in response to the expiration of a preselected time interval corresponding to a difference between a current time and a time corresponding to the setting of the setting of the indicator.