cat /etc/pam.d/smtp                                      
auth required pam_mysql.so user=postfix passwd=uhu \       
 host=localhost \                                               
 db=postfix \                                                   
 table=mailbox \                                                
 usercolumn=username \                                          
 passwdcolumn=password \                                        
 crypt=1                                                        
                                                                
account required pam_mysql.so user=postfix passwd=uhu \    
 host=localhost \                                               
 db=postfix \                                                   
 table=mailbox \                                                
 usercolumn=username \                                          
 passwdcolumn=password \                                        
 crypt=1                                                        

cat /etc/postfix/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
virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf
virtual_gid_maps = static:1001
#hier geben wir das Verzeichnis an in dem wir die emails ablegen wollen
virtual_mailbox_base = /email
virtual_mailbox_domains =  mysql:/etc/postfix/mysql_virtual_domains_maps.cf
virtual_mailbox_limit = 512000000
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_minimum_uid = 1001
virtual_transport = virtual
virtual_uid_maps = static:1001
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
#content_filter = amavis:[127.0.0.1]:10024
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=no
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${queue_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 = domain.exe
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mail.domain.ext,localhost, localhost.locald
omain, localhost
relayhost = 
mynetworks = 127.0.0.0/8
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = mail.domain.ext
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, rej
ect 
smtpd_recipient_restrictions =                                            
   permit_mynetworks,                                                     
   reject_non_fqdn_hostname,                                              
   reject_non_fqdn_sender,                                                
   reject_non_fqdn_recipient,                                             
   reject_unauth_destination,                                             
   reject_unauth_pipelining,                                              
   reject_invalid_hostname,                                               
   reject_rbl_client list.dsbl.org,                                       
   reject_rbl_client bl.spamcop.net,                                      
   reject_rbl_client zen.spamhaus.org,                                    
   reject_rbl_client sbl-xbl.spamhaus.org,                                
   reject_rbl_client whois.rfc-ignorant.org,                              
   reject_rbl_client ix.dnsbl.manitu.org,                                 
   check_policy_service inet:127.0.0.1:60000                              
smtpd_sasl_security_options = noanonymous