Re: Check if I'm open relay

[Jeremy Kister <qmail-01@xxxxxxxxxxxxxxxx>]

On Thursday, April 01, 2004 12:45 AM, Dan Parrish wrote:

> I've used ordb in the past and discovered that my server was vulnerable
> to some "percent hack".  That took a bit of patching my qmail server

your server was not 'vulnerable' to this -- routing data is a feature.

> (which was acting as an email scrubber for a different destinating
> mailserver), but I managed to increase my server's security by using
> ordb.  Once my server was patched up, I resubmitted and was promptly
> removed from their blacklist.

By applying the patch, you simply disabled the feature, which was [probably]
never an issue in the first place.

As discussed millions of times, some people incorrectly think that since an
MTA accepts a message, it is going to deliver it.  Unless you specifically
allowed qmail to deliver messages (via /var/qmail/control/percenthack),
they'd have been bounced, just like any other unknown user.

if ordb truely blacklisted you for this, s/ordb//


Jeremy Kister
www.jeremykister.com/jeremy/