hello everyone,
i'm a newbie with linux and i'm trying step by step to build a mail server with postfix.
Im using SLES.
Here's my main.cf

readme_directory = /usr/share/doc/packages/postfix/README_FILES
inet_protocols = all
biff = no
mail_spool_directory = /var/mail
canonical_maps = hash:/etc/postfix/canonical
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_alias_domains = hash:/etc/postfix/virtual
relocated_maps = hash:/etc/postfix/relocated
transport_maps = hash:/etc/postfix/transport
sender_canonical_maps = hash:/etc/postfix/sender_canonical
masquerade_exceptions = root
masquerade_classes = envelope_sender, header_sender, header_recipient
myhostname = mail2.miodominio.local
program_directory = /usr/lib/postfix
#inet_interfaces = 127.0.0.1 ::1
masquerade_domains =
#mydestination = $myhostname, localhost.$mydomain
defer_transports =
mynetworks_style = subnet
disable_dns_lookups = no
#relayhost =
mailbox_command =
mailbox_transport =
strict_8bitmime = no
disable_mime_output_conversion = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_client_restrictions =
smtpd_helo_required = no
smtpd_helo_restrictions =
strict_rfc821_envelopes = no
#smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
#smtp_sasl_auth_enable = no
#smtpd_sasl_auth_enable = no
smtpd_use_tls = no
smtp_use_tls = no
alias_maps = hash:/etc/aliases
mailbox_size_limit = 0
#message_size_limit = 10240000



#Mie modifiche

inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, $mydomain
relayhost = mail.tin.it
message_size_limit = 0
mynetworks = 192.168.0.0/16
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject _unauth_destination
smtp_sasl_auth_enable = no
smtpd_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtpd_sasl_authenticated_header = yes
broken_sasl_auth_clients = yes

i've also configured smtpd.conf in this manner

pwcheck_method: saslauthd
mech_list: PLAIN LOGIN

I've started saslauthd in this way (to use /etc/passwd)

saslauthd -a getpwent

The problem is that when i try to send a mail to my smtp relay authentication fails

Using command

testsaslauthd -f "socket path" -u user -p user's password

it results in

0: NO Authentication Failed

Sincerely i don't understand why. thanks everyone for his help

P.S.: can you please signal me any guide on the web that will help me to create the mailserver (like postfix+SASL+fetchmail+IMAP+spamassassin ecc...)?