A system for verifying a sender's intent to send an e-mail message to a recipient includes a sender computer having memory and a processor, a sender mail server having memory and a processor, wherein the sender mail server is connected to the sender computer, an e-mail program, wherein the e-mail program is stored in the sender computer's memory, an e-mail message, wherein the e-mail message is stored in the sender computer's memory, an e-mail address verification program, wherein the e-mail address verification program is stored in the sender computer's memory, and a sender correspondence database, wherein the sender correspondence database is stored in the sender computer's memory. A method for verifying a sender's intent to send an e-mail message to a recipient is also disclosed.