mod-pop is a simple Apache 2 module to provide POP (Post Office Protocol) authentication for restricting site access to users who can provide valid POP credentials.
mailauth(8) System Manager's Manual mailauth(8)NAME
mailauth - manipulate alternate authorization database for Post Office Protocol (POP), Internet Message Access Protocol (IMAP), and APOP
users.
SYNOPSIS
/usr/sbin/mailauth [-init] [-convert] [-list [-type POP | APOP | IMAP]] [-delete name] [-user name [-type POP | APOP | IMAP]]
OPTIONS
Initialize the database. You must be superuser to use this option. Convert an existing APOP only database to the new format. You must be
superuser to use this option. Used to list the entries in the mailauth database. If no type is specified, all entries in the database will
be displayed. The display will consist of one column corresponding to the username and another column for the type of user. If a type is
specified using the -type option, only entries for the corresponding type of user (POP, APOP, or IMAP) will be displayed. Used by the sys-
tem administrator to either add a user to the mailauth database, to change the password for the user, or to change the type of user. The
administrator will be prompted for a new password and then a verification of the password. If the type is not explicitly specified and a
previous entry does not exist, then it will default to APOP. Used to delete the entry corresponding to name from the mailauth database.
DESCRIPTION
The mailauth program allows a POP, IMAP, or APOP (an alternate authentication method for POP) user to change the secret value used to gen-
erate their authentication credentials. In addition, both the superuser and the user pop may use this program to either add or remove a
user, or to print public information from it. Only the superuser may initialize or convert the database.
A user can change their own passwords or add themselves to the mailauth database by entering the mailauth command. If an entry already
exists, the user is first prompted to enter the old password. If the password does not correspond with the one in the database, the trans-
action will be ended. Otherwise, the user will be prompted for a new password and a verification of the password. The user is not allowed
to change the type of user they are. For example, they cannot change themselves from a user using the APOP command during the POP Autho-
rization State to a user using the Internet Message Access Protocol (IMAP). If an entry does not already exist in the database, the user
will be added as an APOP user.
Under normal usage, mailauth prompts for a new secret, just like the passwd program. It then updates the POP authorization database
accordingly.
FILES
POP authorization database
SEE ALSO
Command: imapd(8), mailusradm(8), pop3d(8)mailauth(8)