I can send email to yahoo oe any oher, but I can not receive, I do not receive even if if i send to myself, the error in the log is:

Dec 6 20:00:23 ecservi postfix/smtp[15265]: 450F46030C: to=<esteban@mail.midominio.com>, relay=127.0.0.1[127.0.0.1]:10026, delay=4.5, delays=0.05/0.01/0.01/4.4, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as B6A216030D)

and i can see all the email send to me are in the queue

thanks