Sure,
In SMTP Security setting the check in the Disable SMTP VRFY Command box
prevents spammers from mass verifying Email addresses as valid on your
server.
Setting limits on the number of messages sent at one time prevents mail
bombs (sometimes called dictionaries) from trying to send a couple of
thousand Emails to non-existent and existent users. For info on the go to:
http://support.ipswitch.com/kb/IM-19990805-DM02.htm
We set ours to 100, and already today there's been one attempt stopped.
[EMAIL PROTECTED]
http://www.kendra.com
----- Original Message -----
From: "dave marchette" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, July 29, 2000 10:13 AM
Subject: Re: [IMail Forum] STOP SPAM 2
> Can you elabororate on this a bit please:
>
> "Best to just shut verify off, and set the max messages to something like
> 100, and let the big UBE die at the server and be done with it. It's
> stopped the attacks here so far. We used to get hit two or three times a
> week, since the change about a month ago, we don't get hit at all.
>
> "
>
>
> ----- Original Message -----
> From: "Rich" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, July 29, 2000 7:30 AM
> Subject: Re: [IMail Forum] STOP SPAM 2
>
>
> > There was a web page posted here a while back, or on another list, where
> an
> > ISP cracked a spammers computer. There were ICQ logs of the spammer
> > chatting with her cohorts, Email, all sorts of stuff. When they sent
out
> a
> > "dictionary" file of Email addresses to a ISP, they recorded the
incoming
> > bad names that were bounced and the program they had would sort them out
> and
> > keep the good names for that ISP. The program also "automatically"
sorted
> > out mail servers in the Maps RBL by checking it before trying a relay,
> > saving them "tons of time" (the spammers words).
> >
> > Best to just shut verify off, and set the max messages to something like
> > 100, and let the big UBE die at the server and be done with it. It's
> > stopped the attacks here so far. We used to get hit two or three times
a
> > week, since the change about a month ago, we don't get hit at all.
> >
> > [EMAIL PROTECTED]
> > http://www.kendra.com
> >
> > ----- Original Message -----
> > From: "Dooz L Owings" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, July 28, 2000 4:00 PM
> > Subject: Re: [IMail Forum] STOP SPAM 2
> >
> >
> > >
> > > I think a bounce back of some kind is a good idea. That is why I send
a
> > bounce back from forged email that it was not a valid user and if it was
a
> > UBE that it should be considered a scam.. That way when the person gets
> wind
> > that his UBE is getting a bounce back that it is a scam he thinks twice
> > about forged FROM lines.
> > >
> > >
> > > On Fri, 28 Jul 2000 14:45:09 scott.perry wrote:
> > > >That's the problem that I was also trying to figure out. I was
> thinking
> > of not informing the sender (which is the idea of a "black hole", things
> go
> > in never to be seen again), since the overhead of sending the bounce
> > messages to non-existant addresses would double the server load.
> > > >
> > > >On the bright side, though, the spammer would be grinning away that
he
> > stole your services... and that his E-mail went out. He would charge
his
> > shady buddy for his services, then his shady buddy would wonder why not
a
> > single person responded to the E-mail...
> > > > -Scott
> > > >
> > > >
> > > >---------- Original Message ----------------------------------
> > > >From: "David Gregg" <[EMAIL PROTECTED]>
> > > >Reply-To: [EMAIL PROTECTED]
> > > >Date: Fri, 28 Jul 2000 11:18:15 -0700
> > > >
> > > >I've considered doing the same thing - the only problem with that is
> the
> > > >sender believes the mail HAS been delivered, unless you also attempt
to
> > > >notify the sender that the mail was dumped do to the RBL lookup.
This
> > would
> > > >create an unnecessary load on the smtp server and your notifications
> are
> > > >most likely going to bogus reply-to addresses anyway.
> > > >
> > > >Better to shut the door in their face then to let them in and lead
> therm
> > to
> > > >the dumpster.
> > > >
> > > >-----Original Message-----
> > > >From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > > >To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > > >Date: Friday, July 28, 2000 11:10 AM
> > > >Subject: Re: [IMail Forum] STOP SPAM 2
> > > >
> > > >
> > > >>> why there's no support for RBL?!?
> > > >>
> > > >>Would there be much interest for RBL support for IMail? It might be
> > > >possible to do a post-receipt RBL check (that would cause E-mail from
> IPs
> > on
> > > >the RBL to "disappear" after they arrive on your system), using
IMail's
> > > >virus scanner interface. Would this be something worth pursuing?
> > > >> -Scott
> > > >>
> > > >>Please visit http://www.ipswitch.com/support/mailing-lists.html
> > > >>to be removed from this list.
> > > >>
> > > >>An Archive of this list is available at:
> > > >>http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
> > > >>
> > > >
> > > >Please visit http://www.ipswitch.com/support/mailing-lists.html
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> > > >
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> > > >
> > >
> > >
> > > What are you N2? Choose from 150 free e-mail addresses.
> > > http://www.n2mail.com
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