Mailarchivierung unter Linux mit transparentem SMTP Proxy

main.cf: 
# See /usr/share/postfix/main.cf.dist 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 (Debian/GNU)
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=yes
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 = debian.domain1.intern
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
recipient_bcc_maps = hash:/etc/postfix/recipient_bcc
smtp_generic_maps = hash:/etc/postfix/generic
transport_maps = hash:/etc/postfix/transport
myorigin = /etc/mailname
mydestination =  debian.domain1.intern, localhost.domain1.intern, localhost
relayhost = utm.domain1.com
relay_domains = $mydestination, domain1.com
relay_recipient_maps =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"  
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all

recipient_bcc:
info@domain1.com info@localhost