postfix help

[RW]

On Wednesday 07 December 2005 23:01, Michael Sherman wrote:
> Hello all.
>
> I am trying to get postfix to relay mail through my ISP, without much
> luck though.
>
>...
> relayhost = smtp.broadband.rogers.com
> smtp_sasl_auth_enable = yes
> smtp_sasl_security_options = noanonymous
> smtp_sasl_password_maps = hash:/usr/local/etc/postfix/sasl_passwd
>
>
> Yet when I try to send any mail it gets bounced back by Rogers (which
> uses Yahoo for mail services) :

There is a how-to here for another ISP that uses Yahoo: 

http://efflandt.freeshell.org/sbc-smtp-auth.html#postfix

One thing that springs to mind is that by omitting the "[]" around 
smtp.broadband.rogers.com you are asking for the  MX servers to be used.