NAME
popper – POP3 server
SYNOPSIS
popper [-k] [-a plaintextotpsasl] [-t file] [-T seconds] [-d] [-i] [-p port] [--address-log=file]
DESCRIPTION
popper serves mail via the Post Office Protocol. Supported options include:
- -a plaintextotpsasl
-
Tells popper 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 popper that it has to create a socket by itself.
- -k
-
Tells popper 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.
SEE ALSO
push(8), movemail(8)
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.