| Jeff Henkels 2004-01-24, 2:06 am |
| I'm not sure if they do blacklists, but, as I recall, they do require
reverse DNS. I.e., when you connect to Hotmail's SMTP server to send it a
message, they take your SMTP server's IP address and try to associate it
with a domain name. If they can't, or they don't like what comes back (e.g.
it doesn't match the domain specified in the From: address), they drop the
connection.
To see if you have reverse DNS, go to http://www.dnsstuff.com from the
machine running SMTP; shove the machine's IP (or the WAN IP if you're behind
a firewall/proxy) into the "reverse DNS lookup" edit box and hit the RevDNS
button.
"Tom" <nefcytom@pacbell.net> wrote in message
news:079001c3df2f$1b496e40$a101280a@phx.gbl...quote:
> I am testing a mail reply asp script that works fine with
> all but a few IPS mail servers. Hotmail accepts the
> message to a valid account of set up to test to but the
> message gets sent to Hotmail but not delivered to the
> specified mail account.
> Does Hotmail block some ISPs?
> Thanks
> Tom
|