Ubuntu Postfix Configuration – Forward All Incoming Email to Single Address

gmailpostfixUbuntu

I've a Ubuntu 9.04 server installation which is hosting a small number of websites (currently two, and will remain in single figures). The email requirements for the server are very limited – to send outgoing emails and forward all incoming emails to a mailbox on another server – most likely Google.

I've installed postfix and the outgoing mail is working fine. How do I configure Postfix to forward all incoming mail? If I send it to a googlemail address are there any special considerations? Finally how difficult is it to incorporate basic spam filtering into the forwarding mechanism?

Best Answer

This is called a "catch all"

Mapping is done using /etc/postfix/virtual file.

vi /etc/postfix/virtual

Append code as follows, replacing domain and emailusername with actual values:

@yourdomain.com emailusername

Save and close the file. Run following command:

postmap /etc/postfix/virtual

Also make sure you have following line in /etc/postfix/main.cf file:

virtual_alias_maps = hash:/etc/postfix/virtual

If you just added above, line reload postfix:

service postfix reload

From http://www.cyberciti.biz/faq/howto-setup-postfix-catch-all-email-accounts/

Related Solutions

How to setup Postfix to accept all email and send to a specific address

figured it out. I was missing some entries in my main.cf file:

smtpd_recipient_restrictions = permit_mynetworks, permit_auth_destination, reject

virtual_alias_maps = hash:/etc/postfix/virtual

local_recipient_maps =

making the full main.cf:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
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

readme_directory = no

# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_reject_unlisted_recipient = no
smtpd_recipient_restrictions = permit_mynetworks, permit_auth_destination, reject

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = server1.helpmeco.de
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = helpmeco.de, server1.helpmeco.de, localhost.helpmeco.de, localhost
relayhost = 
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = 
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
home_mailbox = Maildir/

virtual_alias_maps = hash:/etc/postfix/virtual

local_recipient_maps =

Centos – Postfix not forwarding email

Finally fixed it, so the error message emails that bounced back from the mailer daemon said:

Technical details of temporary failure:
The recipient server did not accept our requests to connect. Learn more at https://support.google.com/mail/answer/7720
[mail.example.com. XX.XX.XX: socket error]
[mail.example.com. XX.XX.XX: socket error]

And searched around and came across this thread with the same problem: https://www.digitalocean.com/community/questions/postfix-mail-forwarding-socket-error-how-to-fix-mx-records

Needed to set "inet_interfaces = all" in /etc/postfix/main.cf, that did it :)

Best Answer

Related Solutions

How to setup Postfix to accept all email and send to a specific address

Centos – Postfix not forwarding email

Related Topic