Stop spam e-mail from entering the network.
eMstamp stops spam at the source by making spammers buy credits to get their mail delivered.

Gain Privacy. Take Back Your Mailbox.
eMstamp lets the ISP or the client set a privacy level at the mailbox reflecting the number of credits a spammer must use to have a message delivered.

Eliminate the Spread of E-Mail Viruses.
eMstamp blocks self replicating viruses sent from client computers using trojan horse mailers.

Eliminate Costly Solutions.
eMstamp eliminates the need for costly and often unreliable spam filters and puts the recipient back in control their own e-mail. eMstamp credits are applied at the mail server, are reusable, and as long as a server is receiving as much mail as it sends, there's no cost. eMstamp functions transparently for the end user.