0224 Comments on Mailbox Protocol. A.M. McKenzie. Sep-14-1971. (Format: TXT=3583 bytes) (Status: UNKNOWN)

0278 Revision of the Mail Box Protocol. A.K. Bhushan, R.T. Braden, E. Harslem, J.F. Heafner, A.M. McKenzie, J.T. Melvin, R.L. Sundberg, R.W. Watson, J.E. White. Nov-17-1971. (Format: TXT=7526 bytes) (Obsoletes RFC0221) (Status: UNKNOWN)

0402 ARPA Network Mailing Lists. J.B. North. Oct-26-1972. (Not online) (Obsoletes RFC0363) (Status: UNKNOWN)

0539 Thoughts on the mail protocol proposed in RFC 524. D. Crocker, J. Postel. Jul-07-1973. (Format: TXT=6213 bytes) (Status: UNKNOWN)

0561 Standardizing Network Mail Headers. A.K. Bhushan, K.T. Pogran, R.S. Tomlinson, J.E. White. Sep-05-1973. (Format: TXT=6159 bytes) (Updated by RFC0680) (Status: UNKNOWN)

0644 On the problem of signature authentication for network mail. R. Thomas. Jul-22-1974. (Format: TXT=9501 bytes) (Status: UNKNOWN)

706 On the junk mail problem. J. Postel. Nov-08-1975. (Format: TXT=2085 bytes) (Status: UNKNOWN)

0720 Address Specification Syntax for Network Mail. D. Crocker. Aug-05-1976. (Format: TXT=6602 bytes) (Status: UNKNOWN)

0754 Out-of-net host addresses for mail. J. Postel. Apr-06-1979. (Format: TXT=19212 bytes) (Status: UNKNOWN)

0763 Role mailboxes. M.D. Abrams. May-07-1980. (Format: TXT=942 bytes) (Status: UNKNOWN)

0771 Mail transition plan. V.G. Cerf, J. Postel. Sep-01-1980. (Format: TXT=18623 bytes) (Status: UNKNOWN)

0780 Mail Transfer Protocol. S. Sluizer, J. Postel. May-01-1981. (Format: TXT=80352 bytes) (Obsoletes RFC0772) (Obsoleted by RFC0788) (Status: UNKNOWN)

0821 Simple Mail Transfer Protocol. J. Postel. Aug-01-1982. (Format: TXT=124482 bytes) (Obsoletes RFC0788) (Also STD0010) (Status: STANDARD)

0822 Standard for the format of ARPA Internet text messages. D. Crocker. Aug-13-1982. (Format: TXT=109200 bytes) (Obsoletes RFC0733) (Updated by RFC1123, RFC1138, RFC1148, RFC1327, RFC2156) (Also STD0011) (Status: STANDARD)

1137 Mapping between full RFC 822 and RFC 822 with restricted encoding. S. Kille. Dec-01-1989. (Format: TXT=6266 bytes) (Updates RFC0976) (Status: HISTORIC)

1056 PCMAIL: A distributed mail system for personal computers. M.L. Lambert. Jun-01-1988. (Format: TXT=85368 bytes) (Obsoletes RFC0993) (Status: INFORMATIONAL)

1168 Intermail and Commercial Mail Relay services. A. Westine, A.L. DeSchon, J. Postel, C.E. Ward. Jul-01-1990. (Format: TXT=40306, PS=149816, PDF=55890 bytes) (Status: INFORMATIONAL)

1176 Interactive Mail Access Protocol: Version 2. M.R. Crispin. Aug-01-1990. (Format: TXT=67330 bytes) (Obsoletes RFC1064) (Status: EXPERIMENTAL)