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pop3p - Man Page

POP3 proxy gateway service


pop3p [-d] [-l[[@]logfile]] [-pport] [-iinternal_ip] [-eexternal_ip] [-hdefault_ip[:port]]


pop3p is POP3 gateway service to allow internal users to access external POP3 servers.



Inetd mode. Standalone service only.


Daemonise. Detach service from console and run in the background.


Be silenT. Do not log start/stop/accept error records.


Never look for username authentication.


External address. IP address of interface proxy should initiate connections from.  By default system will deside which address to use in accordance with routing table.


Internal address. IP address proxy accepts connections to. By default connection to any interface is accepted. It´s usually unsafe.


Port. Port proxy listens for incoming connections. Default is 110.


Default destination. It's used if targed address is not specified by user.


Log. By default logging is to stdout. If logfile is specified logging is to file. Under Unix, if ´@´ preceeds logfile, syslog is used for logging.


Increase or decrease stack size. You may want to try something like -S8192 if you experience 3proxy crashes.


You can use any MUA (Mail User Agent) with POP3 support. Set client to use internal_ip and port as a POP3 server. Address of real POP3 server must be configured as a part of POP3 username. Format for username is username@server, where server is address of POP3 server and username is user´s login on this POP3 server. Login itself may contain ´@´ sign. Only cleartext authentication is supported, because challenge-response authentication (APOP, CRAM-MD5, etc) requires challenge from server before we know which server to connect.


Report all bugs to 3proxy@3proxy.ru

See Also

3proxy(8), ftppr(8), htproxy(8), socks(8), tcppm(8), udppm(8), syslogd(8),


3proxy is designed by Vladimir 3APA3A Dubrovin (3proxy@3proxy.ru)

Referenced By

3proxy(8), 3proxy.cfg(3), ftppr(8), htproxy(8), socks(8), tcppm(8), udppm(8).

January 2019 3proxy 0.9 Universal proxy server