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Postfix is now set up with a default configuration.  If you need to make changes, edit
/etc/postfix/ (and others) as needed.  To view Postfix configuration
values, see postconf(1).

After modifying, be sure to run '/etc/init.d/postfix reload'.

I then modified the to add my MX record for mydestination,

Code Block
# See /usr/share/postfix/ 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_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

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

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = t01app
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination =, t01app, localhost.localdomain, , localhost
relayhost =
mynetworks = [::ffff:]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all

When time available write up more on these options, ie how I setup my MX record on my domain server to use Google's email service.

Basics of Postfix

Default installations of Postfix stores all messages in an mbox file. To see what directory it is using use the command,