O postfix parece não querer aceitar o relé da máquina local, apesar de mynetworks_style=host . Aqui está a saída mail.log (aparada) quando debug_peer_list ativado:
postfix/smtpd[23247]: resolve_clnt: '' -> '[email protected]' -> transp='error' host='externaldomain.com' rcpt='[email protected]' flags= class=default
postfix/smtpd[23247]: ctable_locate: install entry key [email protected]
postfix/smtpd[23247]: extract_addr: in: [email protected], result: [email protected]
postfix/smtpd[23247]: >>> START Client host RESTRICTIONS <<<
postfix/smtpd[23247]: generic_checks: name=permit_mynetworks
postfix/smtpd[23247]: permit_mynetworks: localhost 127.0.0.1
postfix/smtpd[23247]: match_hostname: localhost ~? 127.0.0.1/32
postfix/smtpd[23247]: match_hostaddr: 127.0.0.1 ~? 127.0.0.1/32
postfix/smtpd[23247]: match_list_match: permit_mynetworks: no match
postfix/smtpd[23247]: generic_checks: name=permit_mynetworks status=1
postfix/smtpd[23247]: >>> END Client host RESTRICTIONS <<<
postfix/smtpd[23247]: >>> START Recipient address RESTRICTIONS <<<
postfix/smtpd[23247]: generic_checks: name=permit_mynetworks
postfix/smtpd[23247]: permit_mynetworks: localhost 127.0.0.1
postfix/smtpd[23247]: match_hostname: localhost ~? 127.0.0.1/32
postfix/smtpd[23247]: match_hostaddr: 127.0.0.1 ~? 127.0.0.1/32
postfix/smtpd[23247]: match_list_match: permit_mynetworks: no match
postfix/smtpd[23247]: generic_checks: name=permit_mynetworks status=1
postfix/smtpd[23247]: >>> END Recipient address RESTRICTIONS <<<
postfix/smtpd[23247]: >>> CHECKING RECIPIENT MAPS <<<
...
postfix/smtpd[23247]: mail_addr_find: [email protected] -> (not found)
postfix/smtpd[23247]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 550 5.1.1 <[email protected]>: Recipient address rejected: externaldomain.com; from=<[email protected]> to=<[email protected]> proto=SMTP
postfix/smtpd[23247]: > localhost[127.0.0.1]: 550 5.1.1 <[email protected]>: Recipient address rejected: externaldomain.com
Tanto quanto eu posso dizer, 127.0.0.1 não é aceito como 'mynetwork'? Aqui está a saída de postconf -n :
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
debug_peer_list = 127.0.0.1
default_transport = error
inet_interfaces = loopback-only
inet_protocols = ipv4
mailbox_size_limit = 0
mydestination = gretl.mindjumpers.com, gretl, localhost.localdomain, localhost
myhostname = gretl
mynetworks_style = host
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
relay_transport = error
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_client_restrictions = permit_mynetworks, reject
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
As seguintes duas linhas não permitem enviar e receber mensagens de fora:
default_transport = error
relay_transport = error
relay_transport e default_transport são usados para entrega remota para domínios retransmitidos e para outros destinos. error mailer salta todos os destinatários.
Tags postfix