我在使用后缀时遇到问题。我认为这与 smtpd_recipient_restrictions 有关，但我不确定。也许问题出在域中继或与之相关的东西上。
我可以接收电子邮件但不能发送。这是我的配置文件：
readme_directory = /usr/share/doc/packages/postfix-doc/README_FILES
inet_protocols = all
biff = no
mail_spool_directory = /var/mail
canonical_maps = hash:/etc/postfix/canonical
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_alias_domains = hash:/etc/postfix/virtual
#virtual_alias_domains = noxae.pt
relocated_maps = hash:/etc/postfix/relocated
transport_maps = hash:/etc/postfix/transport
sender_canonical_maps = hash:/etc/postfix/sender_canonical
masquerade_exceptions = root
masquerade_classes = envelope_sender, header_sender, header_recipient
myhostname = servidor
delay_warning_time = 1h
message_strip_characters = \0
program_directory = /usr/lib/postfix
inet_interfaces = all
masquerade_domains =
#mydestination = $myhostname, localhost.$mydomain, $mydomain, localhost, 213.228.178.71
mydestination = $myhostname, localhost.$mydomain, $mydomain, mail.$mydomain, www.$mydomain, noxae.pt
defer_transports =
mynetworks_style = class
disable_dns_lookups = no
relayhost = noxae.pt
mailbox_command =
mailbox_transport =
strict_8bitmime = no
disable_mime_output_conversion = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_client_restrictions =
smtpd_helo_required = no
smtpd_helo_restrictions =
strict_rfc821_envelopes = no
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
smtp_sasl_auth_enable = yes
smtpd_sasl_auth_enable = yes
smtpd_use_tls = no
smtp_use_tls = no
alias_maps = hash:/etc/aliases
mailbox_size_limit = 0
message_size_limit = 10240000
#smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains