pop(4) — File Formats
NAME
pop − POP database of subscribers
SYNOPSIS
/usr/spool/pop/POP
DESCRIPTION
The POP database contains the following entry for each POP subscriber:
name::primary_file:encrypted_passwd:: user@<client_address>::::0
The fields represent the following:
nameThe POP subscriber’s username
primary_file
The mail drop for the POP subscriber (relative to the POP directory)
encrypted_passwd
The POP subscriber’s password generated by popwrd(8)
user@<client_address>
The remote user allowed to make remote POP (RPOP) connections
This database is an ASCII file. Each field within each POP subscriber’s entry is separated from the next by a colon. Each POP subscriber is separated from the next by a new-line. If the password field is null, then no password is valid.
To add a new POP subscriber, edit the file adding a line such as the following:
mrose::mrose:::::::0i
Then, use popwrd to set the password for the POP subscriber. If you wish to allow POP subscribers to access their maildrops without supplying a password (by using privileged ports), fill-in the network address field, as in:
mrose::mrose:::mrose@nrtc-isc::::0
which permits "mrose@nrtc-isc" to access the maildrop for the POP subscriber "mrose". Multiple network addresses may be specified by separating them with commas, as in:
dave::dave:9X5/m4yWHvhCc::dave@romano.wisc.edu,dave@rsch.wisc.edu::::
To disable a POP subscriber from receiving mail, set the primary file name to the empty string. To prevent a POP subscriber from picking-up mail, set the encrypted password to "∗" and set the network address to the empty string.
This file resides in home directory of the login "pop." Because of the encrypted passwords, it can and does have general read permission.
FILES
/usr/spool/pop/POPPOP database.