main.cf:-
-----------------------------

# 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 = no
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.

myhostname = qa-noweb01.xxxxxx.co.uk
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = qa-support.xxxxxx.co.uk
mydestination = noweb09.xxxxxx.co.uk, localhost.xxxxxx.co.uk, localhost, qa-support.xxxxxx.co.uk
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
virtual_maps = hash:/etc/postfix/virtual, regexp:/etc/postfix/virtual-regexp
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination


# AK 2014/03/24 - Added entries
default_privs = sirportly
# AK 2014/03/24 - Commented out
# myorigin = /etc/mailname



/etc/aliases:-
-----------------------------

root:           sysadmin@xxxxxxxx.co.uk



/etc/postfix/virtual-regexp:-
-----------------------------


/^(dswift)@xxxxxxxx\.co\.uk/ $(1)@xxxxxxxx.co.uk
/^(root)/ sysadmin@xxxxxxxx.co.uk
/^(woverton)@xxxxxxxx\.co\.uk/ $(1)@xxxxxxxx.co.uk
/^.+@qa-support\.xxxxxxxx\.co\.uk/ help
/.+@.+/ qa.xxxxxxxx@gmail.com