Postfix for website sending only

[phpdragon]

I need to configure my debian etch server, which is hosted on my lan behind a firewall/router with virtual server port forwarding and a fixed IP to the web. All site request are automatically converted to SSL.

I only need my php scripts to be able to send emails from various tasks carried out on the server websites.

I have dovecot, postfix, exim4, saslauthd installed.

1. do i need all of them and if not which ones can I remove?

2. i dont want the postfix hijacked so I only want my sites to ba able to send from it.

3.how do i setup my main.cf to acheive this.

 

my current main.cf is a bit messy so i need to clean it up here is the output of postconf -n

 

BuildFITs1:~# 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
inet_interfaces = all
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
mydestination = BuildFITs1.buildfit.com, localhost, localhost.localdomain, localhost
myhostname = BuildFITs1.buildfit.com
mynetworks = 127.0.0.1 10.0.0.0/24
myorigin = /etc/mailname
receive_override_options = no_address_mappings
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = Buildfits1.buildfit.com
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/ssl/certs/postfix.pem
smtpd_tls_key_file = /etc/ssl/private/postfix.pem
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_gid_maps = static:5000
virtual_mailbox_domains = $virtual_mailbox_maps
virtual_mailbox_maps =
virtual_transport = dovecot
virtual_uid_maps = static:5000

[jcombs_31]

Couldn't you just use sendmail?

[phpdragon]

Happy to use what ever works and is secure enough not to be hijacked. I am not really sure what I need to do it but i know that postfix can accomplish this using a null server i beleive but i cant seem to get it working properly.

Here is my latest postconf -n

 

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
inet_interfaces = loopback-only
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
mydestination = buildfit.com, localhost, localhost.localdomain, localhost
myhostname = localhost
mynetworks = 127.0.0.0/8
myorigin = /etc/mailname
recipient_delimiter = +
relayhost = milton.worldispnetwork.com
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options =
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtpd_use_tls = yes