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NAME

pop3d -- remote maildrop access server

SYNOPSIS

/etc/pop3d

DESCRIPTION

Pop3d is a mailbox server based on the Internet RFC1225,Post Office Protocol Version 3. The program allows remoteaccess to UNIX maildrops found in /usr/spool/mail. Theserver requires user and password verification before amaildrop can be opened. The server can retrieve and deletemessages from the maildrop on a per-message basis.

Pop3d listens for TCP requests on port 110. Once connectedit expects single line commands terminated by a <CR-LF>.

Pop3d currently supports the following POP3 commands; thecommands are case independent. In addition, the serversupports one extension command, HOST, which allows accessto BSMTP formatted maildrops in the directory /usr/spool/pop.

The syntax for the HOST command is:
HOST <hostname>
Example:
HOST fennario.ucdavis.eduthis will open the file at /usr/spool/pop/fennario.ucdavis.edu
Command
Description
USER
specify user for maildrop access
PASS
specify password for maildrop access
STAT
give message count and size of maildrop
LIST
list size of individual messages
RETR
retrieve a message
DELE
delete a message
NOOP
do nothing, return a positive response
LAST
give highest message number accessed
RSET
unmark messages marked for deletion
TOP
retrieve part of a message
QUIT
terminate session

The remaining optional command specified in RFC1225 (RPOP)is not implemented.

FILES

/usr/spool/mail/*
UNIX FromSPACE delimited maildrops
/usr/spool/pop/*
BSMTP formatted maildrops

SEE ALSO

pop2d(8C)

AUTHOR

Katie Stevens, dkstevens@ucdavis.edu
Information Technology -- Campus Access PointUniversity of California, Davis

NOTES

The POP3 standard supersedes Post Office Protocol Version 2(POP2), described in RFC937.

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