Here are some benefits of e3 Delivery Service:
Avoid limits imposed by your ISP. Many ISPs restrict the number of messages you can send through their SMTP servers. By using e3 Delivery Service, you avoid having to use your ISP's servers and aren't subject to these limits.
Reliable delivery. Oftentimes, messages sent in Direct mode or sent from misconfigured servers will end up in the junk mail folder. With e3 Delivery Service, your messages will have a smaller chance of being falsely marked as junk.
Faster delivery. Since our servers do the work of merging and delivery, your machine won't be tied up for hours sending messages.