> May 8 23:10:49 silveira postfix/smtp[6583]: warning: no MX host for
> labramo.com.br has a valid A record
> May 8 23:10:50 silveira postfix/smtp[6583]: AFABB5FD71:
> to=<vendas1@labramo.com.br>, relay=none, delay=20, status=deferred
> (Name service error for labramo.com.br: Host not found, try again)
It appears to me to be DNS related rather than a Postfix config issue. I don't see anything
out of the ordinary in your configs.
Here is a thread on a similar error message, where the problem is the search path
in /etc/resolv.conf. Maybe it will be of :
http://groups.google.com/group/list....4027449a5dd6a3
--
Greg