| RFC 793
| Transmission Control Protocol
|
| RFC 821
| Simple Mail Transfer Protocol (SMTP)
|
| RFC 1034
| Domain names - concepts and facilities
|
| RFC 1521
| MIME (Multipurpose Internet Mail Extensions)
Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies
|
| RFC 1918
| Address Allocation for Private Internets
|
| RFC 1939
| Post Office Protocol - Version 3
|
| RFC 2396
| Uniform Resource Identifiers (URI): Generic Syntax
|
| RFC 3501
| INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1
|
