Reference
Postfix reference
Version-aware reference pages with purpose, syntax guidance, operational notes and common mistakes.
myhostname
Specifies the fully qualified hostname of the Postfix mail system.→mydomain
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→myorigin
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→inet_interfaces
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→inet_protocols
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→mynetworks
Defines trusted client networks that may receive relay privileges under the configured restrictions.→smtpd_relay_restrictions
Defines the SMTP server relay policy.→relayhost
Routes otherwise-unmatched outbound mail through a specified next hop.→transport_maps
Selects a delivery transport and next hop by destination.→sender_dependent_default_transport_maps
Selects the default transport according to envelope sender.→sender_dependent_relayhost_maps
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtp_bind_address
Binds the Postfix SMTP client to a specific IPv4 source address.→smtp_helo_name
Overrides the hostname sent by the Postfix SMTP client in EHLO or HELO.→smtp_tls_security_level
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtpd_tls_security_level
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtpd_sasl_auth_enable
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→virtual_alias_maps
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→header_checks
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→body_checks
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→message_size_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→mailbox_size_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→queue_directory
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→maximal_queue_lifetime
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→bounce_queue_lifetime
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→default_process_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtp_destination_concurrency_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→
Specifies the fully qualified hostname of the Postfix mail system.→mydomain
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→myorigin
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→inet_interfaces
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→inet_protocols
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→mynetworks
Defines trusted client networks that may receive relay privileges under the configured restrictions.→smtpd_relay_restrictions
Defines the SMTP server relay policy.→relayhost
Routes otherwise-unmatched outbound mail through a specified next hop.→transport_maps
Selects a delivery transport and next hop by destination.→sender_dependent_default_transport_maps
Selects the default transport according to envelope sender.→sender_dependent_relayhost_maps
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtp_bind_address
Binds the Postfix SMTP client to a specific IPv4 source address.→smtp_helo_name
Overrides the hostname sent by the Postfix SMTP client in EHLO or HELO.→smtp_tls_security_level
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtpd_tls_security_level
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtpd_sasl_auth_enable
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→virtual_alias_maps
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→header_checks
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→body_checks
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→message_size_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→mailbox_size_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→queue_directory
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→maximal_queue_lifetime
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→bounce_queue_lifetime
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→default_process_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→smtp_destination_concurrency_limit
A Postfix main.cf parameter that controls identity, routing, security, queueing or delivery behavior.→