Dear all,
If possible can you tell me what configuration should i have to to to
prevent spammers using my domain for relaying  which should be done for
avoiding spam i.e. i  heard in smtp authentication mail from other domain
can reach us when they send from browser or outlook express(any mail client)
but if they want to send via mail client using our mail domain(relaying
using other domain spammers do) then they would have to to do smtp
authentication is it possible over here.

On Thu, Jul 16, 2009 at 8:23 AM, Sam Clippinger <[email protected]> wrote:

> Maybe.  Are you suggesting it's just a delay to see if the sender blasts
> everything out, like the filter to catch earlytalkers?  120 seconds
> seems like an amazingly long time for that kind of test, if it's
> deliberate.  I would expect a lot of clients to timeout before 120
> seconds (I think the default for Outlook Express is 90 seconds).  Even
> if they didn't timeout, a busy server could easily run out of resources
> with lots of remote connections just hanging open like that.
>
> Without more information, my gut tells me it's probably an error on
> their end.  Something (e.g. rDNS, authentication, recipient validation)
> is taking a long time to finish or timeout, which is causing a delay.
>
> -- Sam Clippinger
>
> Ulrich C. Manns wrote:
> > If i send an email to a mirapoint messaging server
> > (http://www.mirapoint.com) the communication stops for 120 seconds
> > after i send /rcpt to:....
> > /
> > Maybe this is an additional test before greylisting? Something for
> > Spamdyke 4.0.11?
> >
> > Regards,
> > Ulrich
> > ------------------------------------------------------------------------
> >
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