emails bouced to bulkmail folder

[Gautam Gopalakrishnan]

On Mon, 05 Jul 2004 15:32:01 -0600, RYAN vAN GINNEKEN
<maillist at computerking.ca> wrote:
> Need some info on the what the large email severs ie Yahoo and Hotmail
> use to determine if email is spam.  I run a small email server with
> about 30 clients and when i send email to yahoo it gets bounced to the
> bulk mail folder like in my maillog below.

I'm no expert, maybe you can try relaying all your email through your
isp's smtp servers instead of talking to yahoo yourself. Just adding a
value for relayhost in postfix should do it.

Gautam