.\" Copyright (c) Sunil Nimmagadda <sunil@nimmagadda.net>
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.Dd $Mdocdate: March 26 2014 $
.Dt POP3D 8
.Os
.Sh NAME
.Nm pop3d
.Nd Post Office Protocol (POP3) daemon.
.Sh SYNOPSIS
.Nm
.Op Fl c Ar certfile
.Op Fl d
.Op Fl k Ar keyfile
.Op Fl p Ar path
.Op Fl t Ar type
.Sh DESCRIPTION
.Nm
daemon implements Post Office Protocol (Version 3) as specified in
RFC 1939 as well as POP3S and STARTTLS extensions.
.Pp
.Nm
binds to 110(POP3), 995(POP3S) ports and operates on local mailboxes on
behalf of its remote users.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl c Ar certfile
Specify the certificate file. Defaults to /etc/ssl/server.crt.
.It Fl d
Do not daemonize. If this option is specified,
.Nm
will run in foreground and log to
.Em stderr .
.It Fl k Ar keyfile
Specify the key file. Defaults to /etc/ssl/private.key.
.It Fl p
Path to the maildrop. Defaults to /var/mail/%u in case of mbox and
~/Maildir in case of maildir.
.Nm
expands '~' to user's home dir
and '%u' to user's name if specified in the path.
.It Fl t
Specify maildrop type. Options are mbox and maildir. Defaults to mbox.
.El
.Sh FILES
.Bl -tag -width Ds -compact
.It Pa ~/maildir
.It Pa /var/mail/%u
User maildrops
.El
.Sh SEE ALSO
.Xr smtpd 8 ,
.Xr ssl 8
.Sh STANDARDS
.Rs
.%A J. Myers
.%A M. Rose
.%D May 1996
.%R RFC 1939
.%T Post Office Protocol \(en Version 3
.Re
.Pp
.Rs
.%A C. Newman
.%D June 1999
.%R RFC 2595
.%T Using TLS with IMAP, POP3 and ACAP
.Re
.Pp
.Rs
.%A A. Melnikov
.%A C. Newman
.%A M. Yevstifeyev
.%D August 2011
.%R draft-melnikov-pop3-over-tls-02
.Re
.Sh CAVEATS
POP3 authenticates using cleartext passwords on 110(POP3) port.