==== Provide required information to help troubleshoot and get quick answer ====
- Linux/BSD distribution name and version: 10.04.3 LTS
- iRedMail version and backend (LDAP/MySQL):      v0.1.5 (MySQL)
- Any related log? Log is helpful for troubleshooting.
====

I was currently in the process of installing this: https://help.ubuntu.com/community/Mailman  for postfix and now I think I messed up the postfix transport and here is /etc/postfix/main.cf

myhostname = mail.xxxx.com
alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
alias_database = hash:/etc/postfix/aliases
myorigin = mail.xxxx.com
mydestination = $myhostname, localhost, localhost.localdomain, localhost.$myhostname
relayhost =
mynetworks = 127.0.0.0/8
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
virtual_alias_domains =
mydomain = xxxx.com
inet_protocols = ipv4
mynetworks_style = subnet
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_reject_unlisted_recipient = yes
smtpd_sender_restrictions = permit_mynetworks, reject_sender_login_mismatch, permit_sasl_authenticated
delay_warning_time = 0h
policy_time_limit = 3600
maximal_queue_lifetime = 1d
bounce_queue_lifetime = 1d
proxy_read_maps = $canonical_maps $lmtp_generic_maps $local_recipient_maps $mydestination $mynetworks $recipient_bcc_maps $recipient_canonical_maps $relay_domains $relay_recipient_maps $relocated_maps $sender_bcc_maps $sender_canonical_maps $smtp_generic_maps $smtpd_sender_login_maps $transport_maps $virtual_alias_domains $virtual_alias_maps $virtual_mailbox_domains $virtual_mailbox_maps $smtpd_sender_restrictions
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,permit_sasl_authenticated, check_helo_access pcre:/etc/postfix/helo_access.pcre
queue_run_delay = 300s
minimal_backoff_time = 300s
maximal_backoff_time = 4000s
enable_original_recipient = no
disable_vrfy_command = yes
home_mailbox = Maildir/
allow_min_user = no
message_size_limit = 15728640
virtual_minimum_uid = 1001
virtual_uid_maps = static:1001
virtual_gid_maps = static:1001
virtual_mailbox_base = /var/vmail
transport_maps = hash:/etc/postfix/transport
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql/virtual_mailbox_maps.cf
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql/virtual_alias_maps.cf, proxy:mysql:/etc/postfix/mysql/domain_alias_maps.cf, proxy:mysql:/etc/postfix/mysql/catchall_maps.cf, proxy:mysql:/etc/postfix/mysql/domain_alias_catchall_maps.cf
sender_bcc_maps = proxy:mysql:/etc/postfix/mysql/sender_bcc_maps_domain.cf, proxy:mysql:/etc/postfix/mysql/sender_bcc_maps_user.cf
recipient_bcc_maps = proxy:mysql:/etc/postfix/mysql/recipient_bcc_maps_domain.cf, proxy:mysql:/etc/postfix/mysql/recipient_bcc_maps_user.cf
relay_domains = lists.example.com
smtpd_sender_login_maps = proxy:mysql:/etc/postfix/mysql/sender_login_maps.cf
smtpd_reject_unlisted_sender = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain =
broken_sasl_auth_clients = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_authenticated_header = no
smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unlisted_recipient, check_policy_service inet:127.0.0.1:7777, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, check_policy_service inet:127.0.0.1:10031
smtpd_tls_security_level = may
smtpd_enforce_tls = no
smtpd_tls_loglevel = 0
smtpd_tls_CAfile = /etc/ssl/certs/iRedMail_CA.pem
tls_random_source = dev:/dev/urandom
tls_daemon_random_source = dev:/dev/urandom

please note the xxxx.com is there for security reasons for my domain. So I need to know what I need to do to fix this issue?==== Provide required information to help troubleshoot and get quick answer ====
- Linux/BSD distribution name and version:
- iRedMail version and backend (LDAP/MySQL):
- Any related log? Log is helpful for troubleshooting.
====