Eu configurei o postfix para retransmitir mensagens proxmox através da minha conta do gmail e usei aliases para encaminhar todo o meu e-mail raiz para um endereço externo. Ao usar o comando sendmail, o e-mail pode ser visto na pasta enviada do gmail com o campo Para: vazio e Cco: é o meu endereço externo. Ao usar o email -s, o e-mail é visto na pasta enviada pelo Gmail com o campo Para: como o e-mail original original e Bcc: é meu endereço externo.
O meu endereço de encaminhamento não deve substituir [email protected] no campo Para: em vez de Cco: e deixar de enviar para [email protected] completamente?
Comandos de teste para o email raiz
# echo -e "Subject:Hello World \n\n Testing email\n" | sendmail root
# echo "testing" | mail -s "test message" root
Arquivo de registro
Dec 29 12:56:13 pve postfix/pickup[32080]: DB1E662DFA: uid=0 from=<root>
Dec 29 12:56:13 pve postfix/cleanup[32097]: DB1E662DFA: message-id=<[email protected]>
Dec 29 12:56:13 pve postfix/qmgr[32081]: DB1E662DFA: from=<[email protected]>, size=390, nrcpt=1 (queue active)
Dec 29 12:56:13 pve postfix/cleanup[32097]: E13A162DF8: message-id=<[email protected]>
Dec 29 12:56:13 pve postfix/local[32099]: DB1E662DFA: to=<[email protected]>, orig_to=<root>, relay=local, delay=0.04, delays=0.03/0.01/0/0, dsn=2.0.0, status=sent (forwarded as E13A162DF8)
Dec 29 12:56:13 pve postfix/qmgr[32081]: E13A162DF8: from=<[email protected]>, size=515, nrcpt=1 (queue active)
Dec 29 12:56:13 pve postfix/qmgr[32081]: DB1E662DFA: removed
Dec 29 12:56:13 pve postfix/smtp[32100]: connect to smtp.gmail.com[2607:f8b0:4001:c1d::6c]:587: Network is unreachable
Dec 29 12:56:14 pve postfix/smtp[32100]: E13A162DF8: to=<[email protected]>, orig_to=<root>, relay=smtp.gmail.com[74.125.126.109]:587, delay=0.85, delays=0/0.03/0.37/0.45, dsn=2.0.0, status=sent (250 2.0.0 OK 1514570174 f126sm11045770ioa.84 - gsmtp)
Dec 29 12:56:14 pve postfix/qmgr[32081]: E13A162DF8: removed
Dec 29 12:59:40 pve postfix/pickup[32080]: D6C9362DFA: uid=0 from=<root>
Dec 29 12:59:40 pve postfix/cleanup[32429]: D6C9362DFA: message-id=<[email protected]>
Dec 29 12:59:40 pve postfix/qmgr[32081]: D6C9362DFA: from=<[email protected]>, size=280, nrcpt=1 (queue active)
Dec 29 12:59:40 pve postfix/cleanup[32429]: DDD4D62DF8: message-id=<[email protected]>
Dec 29 12:59:40 pve postfix/local[32431]: D6C9362DFA: to=<[email protected]>, orig_to=<root>, relay=local, delay=0.05, delays=0.03/0.01/0/0.01, dsn=2.0.0, status=sent (forwarded as DDD4D62DF8)
Dec 29 12:59:40 pve postfix/qmgr[32081]: DDD4D62DF8: from=<[email protected]>, size=405, nrcpt=1 (queue active)
Dec 29 12:59:40 pve postfix/qmgr[32081]: D6C9362DFA: removed
Dec 29 12:59:41 pve postfix/smtp[32432]: connect to smtp.gmail.com[2607:f8b0:4001:c1d::6c]:587: Network is unreachable
Dec 29 12:59:41 pve postfix/smtp[32432]: DDD4D62DF8: to=<[email protected]>, orig_to=<root>, relay=smtp.gmail.com[74.125.126.109]:587, delay=0.93, delays=0.01/0.02/0.52/0.38, dsn=2.0.0, status=sent (250 2.0.0 OK 1514570381 a69sm13573861itc.18 - gsmtp)
Dec 29 12:59:41 pve postfix/qmgr[32081]: DDD4D62DF8: removed
aliases
root: [email protected]
postmaster: root
nobody: root
hostmaster: root
webmaster: root
www:root
main.cf
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
myhostname=pve.home.com
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, localhost.$mydomain, localhost
#relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
inet_interfaces = loopback-only
recipient_delimiter = +
# sets gmail as relay
relayhost = [smtp.gmail.com]:587
# use tls
smtp_use_tls=yes
# use sasl when authenticating to foreign SMTP servers
smtp_sasl_auth_enable = yes
# path to password map file
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
# list of CAs to trust when verifying server certificate
smtp_tls_CAfile = /etc/ssl/certs/Equifax_Secure_CA.pem
smtp_tls_session_cache_database = btree:/var/lib/postfix/smtp_tls_session_cache
smtp_tls_session_cache_timeout = 3600s
# eliminates default security options which are imcompatible with gmail
smtp_sasl_security_options =
hosts
127.0.0.1 localhost.localdomain localhost
127.0.1.1 pve.home.com pve pvelocalhost
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
mailname
pve.home.com