I have example.com configured as using relay mailjet.com and also the emails associated with that like [email protected] would like this [email protected] to use another relay which is smtp-int.xyz.com which is basically routed internally in my company. Anything sent to @xyz.com is routing through smtp-int.xyz.com Is that possible? I tried to add the entry of [email protected] in /etc/postfix/senders_relay and reloaded postfix but it didn't help....I also tried to add this in /etc/postfix/transport and this also didn't help....may be i am doing something wrong....
/etc/postfix/sender_relay
@example.com in-v3.mailjet.com
/etc/postfix/transport
xyz.com smtp:smtp-int.xyz.com
example.com smtp:in-v3.mailjet.com
/etc/postfix/main.cf
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
smtp_sender_dependent_authentication = yes
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_password
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
compatibility_level = 2
header_checks = regexp:/etc/postfix/header_checks
inet_interfaces = all
inet_protocols = all
mailbox_size_limit = 0
mydestination = $myhostname, mca-xyz.com, localhost
myhostname = mca-xyz.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_password
smtp_sasl_security_options = noanonymous
smtp_sender_dependent_authentication = yes
smtp_tls_CApath = /etc/ssl/certs
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_sender_restrictions = check_sender_access regexp:/etc/postfix/allowed_senders
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_security_level = may
transport_maps = regexp:/etc/postfix/discard
some log :
Nov 16 05:06:27 mca-xyz.com postfix/cleanup[557307]: 7FB925F925: warning: header Subject: Wildfly AS DOPS (mca04.xyz.com) restart OK from mca04.xyz.com[xxx.xx.xx.xxx]; [email protected] [email protected] proto=SMTP helo=<mca04.xyz.com>
Nov 16 05:06:27 mca-xyz.com postfix/smtp[557560]: 7FB925F925: [email protected], relay=in.mailjet.com[xxx.xxx.xx.xx]:25, delay=0.26, delays=0.01/0/0.17/0.08, dsn=2.0.0, status=sent (250 OK queued as 5bd486ec-8825-4d16-ad5f-71f18603b431)