en el log me salta lo siguiente ...

May 17 18:15:37 corpocar dovecot: pop3-login: Disconnected (auth failed, 1 attempts in 4 secs): user=<corpocar@corpocar.com>, method=PLAIN, rip=46.4.81.217, lip=192.1$
May 17 18:16:28 corpocar postfix/qmgr[3744]: 31F221A00A6D: from=<maugerijuan@gmail.com>, size=3093, nrcpt=1 (queue active)
May 17 18:16:28 corpocar postfix/qmgr[3744]: warning: connect to transport private/virtuales: No such file or directory
May 17 18:16:28 corpocar postfix/qmgr[3744]: 422071A00B99: from=<maugerijuan@gmail.com>, size=2439, nrcpt=1 (queue active)
May 17 18:16:28 corpocar postfix/error[3774]: 31F221A00A6D: to=<pablo@corpocar.com>, relay=none, delay=368, delays=368/0.02/0/0.05, dsn=4.3.0, status=deferred (mail t$
May 17 18:16:28 corpocar postfix/error[3775]: 422071A00B99: to=<pablo@corpocar.com>, relay=none, delay=341, delays=341/0.01/0/0.06, dsn=4.3.0, status=deferred (mail t$
May 17 18:21:14 corpocar postfix/smtpd[3781]: connect from relay.ipxon.com[158.69.89.125]
May 17 18:21:15 corpocar postfix/smtpd[3781]: NOQUEUE: reject: RCPT from relay.ipxon.com[158.69.89.125]: 550 5.1.1 <info@corpocar.com>: Recipient address rejected: Us$
May 17 18:21:15 corpocar postfix/smtpd[3781]: disconnect from relay.ipxon.com[158.69.89.125] ehlo=1 mail=1 rcpt=0/1 data=0/1 rset=1 quit=1 commands=4/6
May 17 18:21:28 corpocar postfix/qmgr[3744]: 5971C1A00951: from=<maugerijuan@gmail.com>, size=2454, nrcpt=1 (queue active)
May 17 18:21:28 corpocar postfix/qmgr[3744]: warning: connect to transport private/virtuales: No such file or directory
May 17 18:21:28 corpocar postfix/error[3785]: 5971C1A00951: to=<pablo@corpocar.com>, relay=none, delay=2296, delays=2296/0.01/0/0.04, dsn=4.3.0, status=deferred (mail$
May 17 18:24:35 corpocar postfix/anvil[3783]: statistics: max connection rate 1/60s for (smtp:158.69.89.125) at May 17 18:21:14
May 17 18:24:35 corpocar postfix/anvil[3783]: statistics: max connection count 1 for (smtp:158.69.89.125) at May 17 18:21:14
May 17 18:24:35 corpocar postfix/anvil[3783]: statistics: max cache size 1 at May 17 18:21:14


el quick manager como que no sabe donde repartir los correos pero tengo todo bien .. el tipo de autentificación lo hago x mysql .. la verdad q no se x donde buscar el error .. ya que la tabla virtuales la cree .. no se ...

alguna ayuda ?

Hola ,

Puedes poner tu configuración en main.cf

Revisa que tengas bien el fichero que contiene la sql para conectar al servidor y saber que direcciones de correo existen en el servidor
May 17 18:16:28 corpocar postfix/qmgr[3744]: warning: connect to transport private/virtuales: No such file or directory

Aqui dice que no lo tienes

Saludos