searching for the special result

[Mohsen Pahlevanzadeh]

Dear all,

Already i installed dovecot (lda) + postfix 
Now, when i search for dovecot+postfix+mysql+ldap , i don't find any
content about LMTP with dovecot+postfix+mysql+ldap
Unfortunately, When i find a article, paper or so on, it doesn't
complete 100%, it means or doesn't have LMTP, or doesn't have sql, or it
has sasl)
Question: 
Is my way wrong?