Sorry - the hostname parameter was not blank on my initial config, I
just omitted it from the email when I pasted my postconf -n. I guess I
should have specified that before. I removed the trailing 'permits'
from the 'smtpd_*_restrictions' as shown below. Also removed blank
entries like 'relayhosts'. I removed 'default' values from cluttering
my config. Do you guys see any other issues with the read out or
problems with my modifications I made?
mail:~# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
home_mailbox =mail/
inet_interfaces = all
mailbox_size_limit = 0
message_size_limit = 20480000
mime_header_checks = regexp:/etc/postfix/mime_header_checks
mydestination = $myhostname, $mydomain, mail.$mydomain
myhostname = mail.iamunix.org
mynetworks = $config_directory/mynetworks
myorigin = iamunix.org
readme_directory = no
recipient_delimiter = +
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,
reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname
smtpd_recipient_restrictions = reject_unauth_pipelining,
reject_non_fqdn_recipient, reject_unknown_recipient_domain,
permit_mynetworks, reject_unauth_destination, reject_rbl_client
zen.spamhaus.org, reject_rbl_client bl.spamcop.net
smtpd_sender_restrictions = permit_mynetworks,
reject_non_fqdn_sender, reject_unknown_sender_domain
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtpd_use_tls = yes
