Not delivery

[Ing. Carlos Alberto Dávila Cantú]

Hi, I install qmail and configure as the My Life With Qmail document. I can
configure the selective relay and the pop. I have a problem, when we send
mail of another computer to external address (for example yahoo.com) the
SMTP server accept the mail but not send it to yahoo.com. If I send another
mail of the same server (with pine) the mail is send to yahoo.  Can you help
with this?

Thank's

Carlos