1 .\" Copyright (c) 2001 - 2004 Kungliga Tekniska Högskolan
2 .\" (Royal Institute of Technology, Stockholm, Sweden).
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
10 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
16 .\" 3. Neither the name of the Institute nor the names of its contributors
17 .\" may be used to endorse or promote products derived from this software
18 .\" without specific prior written permission.
20 .\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
21 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
24 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .\" $Heimdal: popper.8 14047 2004-07-14 09:14:47Z joda $
45 .Op Fl a Ar plaintext Ns \*(Ba Ns Ar otp Ns \*(Ba Ns Ar sasl
51 .Op Fl -address-log= Ns Pa file
54 serves mail via the Post Office Protocol. Supported options include:
56 .It Fl a Ar plaintext Ns \*(Ba Ns Ar otp Ns \*(Ba Ns Ar sasl
59 which authentication mode is acceptable,
61 enables SASL (RFC2222), and
63 enables OTP (RFC1938) authentication. Both disable plaintext passwords.
64 .It Fl -address-log= Ns Pa file
65 Logs the addresses (along with a timestamp) of all clients to the
66 specified file. This can be used to implement POP-before-SMTP
69 Enables more verbose log messages.
71 When not started by inetd, this flag tells
73 that it has to create a socket by itself.
77 to use Kerberos for authentication. This is the traditional way of
78 doing Kerberos authentication, and is normally done on a separate port
79 (as it doesn't follow RFC1939), and should be used instead of using
82 Port to listen to, in combination with
85 Trace all commands to file.
87 Set timeout to something other than the default of 120 seconds.
97 RFC1939 (Post Office Protocol - Version 3)
98 .\" RFC2449 (POP3 Extension Mechanism)
101 The server was initially developed at the University of California,
104 Many changes have been made as part of the KTH Kerberos distributions.