Download mirrors for rfc821.txt.gz (24.42 KB):

1991-07-11  ftp://ftp.gweep.ca/pub/rfc/rfc821.txt.gz
1996-05-18  ftp://ftp.lf.net/pub/doc/ietf/rfc/rfc821.txt.gz
1993-03-29  ftp://ftp.gla.ac.uk/pub/RFC/rfc821.txt.gz
1990-10-16  ftp://ftp.swb.de/pub/docs/rfc/rfc821.txt.gz