Cannot receive email for local users

Hi, 
I have installed version 3.7.4 of Apache James on OEL8 and it works integrated with Cassandra, Elasticsearch, SOGo (as web mail frontend) and the users are stored in OpenLDAP.
LDAP configuration works and i can see users thru WebAdmin and also i'm able to connect on IMAP fomr SOGO or others email clients.
The problem is with the SMTP server that refuses to recognize local users reporting "550 5.1.1 Unknown user:"

The content of the "usersrepository.xml" file looks like below:

<usersrepository name="LocalUsers"
            ldapHost="ldap://localhost:389"
            principal="cn=domain_admin,dc=example,dc=com"
            credentials=“<some password>"
            userBase="ou=users,ou=james,dc=example,dc=com"
            userIdAttribute="uid"
            userObjectClass="person">
          <enableVirtualHosting>true</enableVirtualHosting>
          <enableForwarding>true</enableForwarding>
</usersrepository>

Therefore the VirtualHosting it's enable and the user has ending with "@example.com"

resuts from "curl -XGET http://localhost:8000/users" show me that the Apache James can read users from OpenLdap 

[
    {
        "username": "[email protected]"
    }
]


The real problem appears when I try to set the SMTP server with the telnet command and the result is shown below

[root@mail ~]# telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 Apache JAMES awesome SMTP Server
ehlo test
250-mail.example.com Hello test [127.0.0.1])
250-PIPELINING
250-ENHANCEDSTATUSCODES
250 8BITMIME
mail from:<[email protected]>
250 2.1.0 Sender <[email protected]> OK
rcpt to:<[email protected]>
550 5.1.1 Unknown user: [email protected]
Connection closed by foreign host.