NAME
pop2d - remote maildrop access server
SYNOPSIS
/usr/sbin/in.pop2d
DESCRIPTION
Pop2d is a mailbox server based on the Internet RFC937, Post Office Protocol Version 2. The program allows remote access to UNIX maildrops found in /var/spool/mail. The server requires user and password verification before a maildrop can be opened. The server can retrieve and delete messages from the maildrop on a per-message basis.
Pop2d listens for TCP requests on port 109. Once connected it expects single line commands terminated by a <CR-LF>.
Pop2d currently supports the following POP2 commands; the commands are case independent. In addition, the server supports one extension command, HOST, which allows access to BSMTP formatted maildrops in the directory /var/spool/pop.
The syntax for the HOST command is: HOST <hostname>
Example: HOST fennario.ucdavis.edu
this will open the file at /var/spool/pop/fennario.ucdavis.edu
Command Description
HELO specify maildrop user and password
FOLD open a UNIX maildrop (FromSPACE delimited)
HOST open a BSMTP maildrop in /var/spool/pop
READ switch to a message in a maildrop
RETR retrieve a message in a maildrop
ACKS save message just retrieved, switch to next
ACKD delete message just retrieved, switch to next
NACK save message just retrieved, prepare to resend
QUIT terminate session
FILES
/var/spool/mail/* UNIX FromSPACE delimited maildrops /var/spool/pop/* BSMTP formatted maildrops
SEE ALSO
AUTHOR
Katie Stevens, [email protected]
Information Technology -- Campus Access Point
University of California, Davis
NOTES
The POP2 standard has been superseded by Post Office Protocol Version 3 (POP3), described in RFC1081.