# DO NOT EDIT THIS FILE. EDIT THE MAIN.CF FILE INSTEAD. THE STUFF # HERE JUST SERVES AS AN EXAMPLE. # # This file contains example settings of Postfix configuration # parameters that control the SMTP client program. # # MISCELLANEOUS CONTROLS # # The best_mx_transport parameter controls what happens when the # local system is listed as the best MX host for a destination. By # default, Postfix reports a "mail loops back to myself" error and # bounces the message. Specify "best_mx_transport = local" to pass # the mail to the local delivery agent. You can specify any transport # that is defined in the master.cf file. # # best_mx_transport = # The fallback_relay parameter specifies zero or more hosts or domains # to hand off mail to if a message destination is not found, or if a # destination is unreachable. # # By default, mail is bounced when a destination is not found, and # delivery is deferred if a destination is unreachable. # fallback_relay = # The ignore_mx_lookup_error parameter controls what happens when a # name server fails to respond to an MX lookup request. By default, # Postfix defers delivery and tries again after some delay. Specify # "ignore_mx_lookup_error = yes" to force an A record lookup instead. # ignore_mx_lookup_error = no # The smtp_skip_4xx_greeting parameter controls what happens when # an SMTP server greets us with a 4XX status code. By default, Postfix # backs off. Specify "smtp_skip_4xx_greeting = yes" to move on the # the next mail exchanger. # smtp_skip_4xx_greeting = no # The smtp_skip_quit_response parameter controls whether the SMTP # client waits for the response to the QUIT command. The default is # to not wait. # smtp_skip_quit_response = yes # # RATE CONTROLS # # The smtp_destination_concurrency_limit parameter limits the number # of parallel deliveries to the same destination via the smtp delivery # agent. # # The default limit is the default_destination_concurrency_limit # parameter. It is probably safer to limit the concurrency to 10. # smtp_destination_concurrency_limit = 10 # The smtp_destination_recipient_limit parameter limits the number # of recipients per delivery via the smtp delivery agent. # # The default is taken from the default_destination_recipient_limit # parameter. # smtp_destination_recipient_limit = $default_destination_recipient_limit # # TIMEOUT CONTROLS # # Note: if you set SMTP timeouts to large values you must update the # global ipc_timeout and daemon_timeout parameters as well. See # sample-misc.cf for details. # # The smtp_connect_timeout parameter specifies the SMTP client # timeout in seconds for completing a TCP connection. # # When no connection can be made within the deadline, the SMTP client # tries the next address on the mail exchanger list. Specify 0 to # disable the timeout. # # smtp_connect_timeout = 30 smtp_connect_timeout = 0 # The smtp_helo_timeout parameter specifies the SMTP client timeout # in seconds for receiving the SMTP greeting banner. # # When the server drops the connection without sending a greeting # banner, or when it sends no greeting banner within the deadline, # the SMTP client tries the next address on the mail exchanger list. # smtp_helo_timeout = 300 # The smtp_mail_timeout parameter specifies the SMTP client timeout # in seconds for sending the SMTP MAIL FROM command, and for receiving # the server response. # # In case of problems the client does NOT try the next address on # the mail exchanger list. # smtp_mail_timeout = 300 # The smtp_rcpt_timeout parameter specifies the SMTP client timeout # in seconds for sending the SMTP RCPT TO command, and for receiving # the server response. # # In case of problems the client does NOT try the next address on # the mail exchanger list. # smtp_rcpt_timeout = 300 # The smtp_data_init_timeout parameter specifies the SMTP client # timeout in seconds for sending the SMTP DATA command, and for # receiving the server response. # # In case of problems the client does NOT try the next address on # the mail exchanger list. # smtp_data_init_timeout = 120 # The smtp_data_xfer_timeout parameter specifies the SMTP client # timeout in seconds for sending the SMTP message content. When # the connection stalls for more than $smtp_data_xfer_timeout the # SMTP client terminates the transfer. # # In case of problems the client does NOT try the next address on # the mail exchanger list. # smtp_data_xfer_timeout = 180 # The smtp_data_done_timeout parameter specifies the SMTP client # timeout in seconds for sending the SMTP ".", and for receiving # the server response. # # When no response is received within the deadline, a warning is # logged that the mail may be delivered multiple times. # # In case of problems the client does NOT try the next address on # the mail exchanger list. # smtp_data_done_timeout = 600 # The smtp_quit_timeout parameter specifies the SMTP client timeout # in seconds for sending the SMTP QUIT command, and for receiving # the server response. # smtp_quit_timeout = 300