Whether there are multiple dial-up connections, or dialup and local area connections, Smart Mail Sender solves the problem of switching among them.Using multiple connections, we are forced to use different SMTP servers in order to send email messages. We could use the email account server, if we would benefit from SMTP authentication or Open Relay on that server (but the transfer rate would be lower). At every connection change the user is forced to reconfigure the SMTP server in the email client. Smart Mail Sender automatically redirects outgoing email messages to the SMTP server of the active connectionТ‘s ISP.