NetXtremeFtp .NET class library offers a number of classes that make the work of transferring files directly from your application using FTP/SSL more easily.
NetXtremeMail .NET component allows you to retrieve, create, load, process save and send mails using an easy-to-use interface. It supports POP3, IMAP and SMTP.
Safabyte Mail Merge Suite is a set of flexible and easy-to-use .NET components for generating dynamic email content, securely sending, receiving, signing/verifying, encrypting/decrypting and modifying e-mail messages.