the pay2send system uses "RAPNAP" (Return Address, Peer Network Address Pair) verification to provide an adequate level of security on pay2send account funds, when used in concert with a SMTP server configured to require authentication via SMTP AUTH or some other method, such as web-mail login.

Particular authorization will be required for paying e-mail tolls higher than the amount stated in this box.

Initially, only your fellow pay2send associates will be able to charge tolls. When the pay2send infrastructure is used widely, tolls may be charged when sending mail to recipients in other domains too.