This memo defines two extensions to the SMTP service. The first service enables a SMTP client and server to negotiate the use of an alternate DATA command "BDAT" for efficiently sending large MIME messages. The second extension takes advantage of the BDAT command to permit the negotiated sending of unencoded binary data. This memo defines an Experimental Protocol for the Internet community.
This document presents a checklist to facilitate evaluation of MIME capable User Agents. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.
This memo defines an extension to the SMTP service whereby a server can indicate the extent of its ability to accept multiple commands in a single TCP send operation. [STANDARDS-TRACK]
This memo contains a table of commonly occurring headers in headings of e-mail messages. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.