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.