How can i check if my mail server is open for relaying?
What should we handle bounce messages if SPAM comes from diferent domains - LOTS - of
different domains.
pls advice....
[EMAIL PROTECTED] wrote:
>
>
> [EMAIL PROTECTED] wrote:
>
> >On Wed, 4 Jul 2001, Jolly Roger wrote:
> >
> >>
> >> Take a look at your headers being returned by the bounce message. If
> >> you see something like "Received: from big.sportec.es (EHLO
> >> correo.sportec.es) (195.75.168.2)", we may be up against the same
> >> guys.
>
> I did a quick test big.sportec.es is an Open Relay.
>
> >that same spammer used 3 of the domains we host and and used it as source
> >address. So since early this morning, got close to a thousand bounced
> >mails to $random$ :(
>
> Yeah, so they're using several open relays, many in .kr and .tw. Lots of open relays
>(and incompetent/indifferent admins) in .kr, apparently.
>
> >by the looks of it, they used multiple open relays... but not ours ;)
>
> Doesn't matter, we're still the ones that have to handle with bounce messages.
>
> >so now, spammers don't just invent domains, they use your domain...
>
> Yup. I'd still like to have a word with the administrators of those open relays
>though...
>
> JR
>
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