Digital

NAME

popd − the POP server

SYNOPSIS

/usr/etc/popd [-p portno] (under /etc/rc.local)

FLAGS

-p portno
Overrides the default TCP port.

DESCRIPTION

The popd server implements the Post Office protocol (POP), as described in RFC1081 and RFC1082. Basically, the server listens on the TCP port named pop for connections. When it receives a connection request from a client, it performs the following functions:

       •Checks for client authentication by searching the password file POP in /usr/spool/pop. 

       •Sends the client any mail messages it is holding for the client. (The server holds the messages in /usr/spool/pop.)  For historical reasons, the MH POP defaults to using the port named "pop" (port 109) instead of its newly assigned port named "pop3" (port 110). See the POPSERVICE configuration option for more details. Previous versions of the server (10/28/84) had the restriction that the POP client may retrieve messages only for users with logins on the server machine. This restriction has been lifted, and true POP support is available to any client regardless of whether the client has a login account on the server host.

FILES

/usr/spool/pop/POPPOP database. 

RELATED INFORMATION

Files: pop(4), popaka(8), popwrd(8) Post Office Protocol - version 3 (RFC-1081) and Post Office Protocol - version 3: Extended service offerings (RFC-1082)