SYNOPSIS

[-k ] [-a plaintext | otp | sasl ] [-t file ] [-T seconds ] [-d ] [-i ] [-p port ] [--address-log= file ]

DESCRIPTION

serves mail via the Post Office Protocol. Supported options include:

-a plaintext | otp | sasl

Tells which authentication mode is acceptable, sasl enables SASL (RFC2222), and otp enables OTP (RFC1938) authentication. Both disable plaintext passwords.

--address-log= file

Logs the addresses (along with a timestamp) of all clients to the specified file. This can be used to implement POP-before-SMTP authentication.

-d

Enables more verbose log messages.

-i

When not started by inetd, this flag tells that it has to create a socket by itself.

-k

Tells to use Kerberos for authentication. This is the traditional way of doing Kerberos authentication, and is normally done on a separate port (as it doesn't follow RFC1939), and should be used instead of using SASL.

-p port

Port to listen to, in combination with -i

-t file

Trace all commands to file.

-T seconds

Set timeout to something other than the default of 120 seconds.

STANDARDS

RFC1939 (Post Office Protocol - Version 3)

AUTHORS

The server was initially developed at the University of California, Berkeley.

Many changes have been made as part of the KTH Kerberos distributions.