SMTP E-mail sending class: Sends e-mail messages via SMTP protocol

The class that connects to an SMTP mail server to send messages. It features:

- Relaying message delivery to a programmer-defined SMTP server.
- Connect to the SMTP server via a SOCKS 4 or 5 server, or an HTTP proxy
- Programmer-defined server address, server port, connection timeout, and origin host address.
- Authentication mechanisms implemented by SASL client classes like PLAIN, LOGIN, CRAM-MD5, NTLM (Windows or Linux/Unix via Samba), XOAUTH2, etc...
- Support for POP3-based authentication before delivery.
- Direct delivery to one or more recipients with e-mail addresses with the same domain, so you do not need to relay on your SMTP server or your ISP's SMTP server.
- Setting the sender and recipient address as a separate step from sending the headers and the body of the message.
- Returns message delivery success.
- Detects extensions supported by the SMTP server.
- Takes advantage of the SMTP PIPELINING extension to buffer SMTP commands, minimizing SMTP dialogue between the class and the server to provide a much faster queueing of messages to be delivered to many recipients ( bulk mail ).

* Note: this class is better in conjunction with the "MIME E-mail message composing and sending class." See in the Email group.

Send emails fast
I need to send many emails