Ok. Yes this is the configuration on our server. So you're saying that the
sender is actually addressing the email to:
[EMAIL PROTECTED]
I received your emails and saw that, thanks.
John Cesta
http://www.cybersmarts.net
-------------------------------------------------
ColdFusion ASP and ActiveState PERL Hosting
--------------------------------------------
SearchIt PRO - IIS Logfile Management Software
DomainReportIt PRO - Transfer IIS installs
http://www.serverautomationtools.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Donnelly
Sent: Friday, September 29, 2000 10:26 AM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] sometimes user@ www.thedomain.com instead of
[EMAIL PROTECTED]
John,
If both names resolve to the same IP and IMail has one as the Official Host
name and the other as an Alias for the domain, then the sender is using that
address! Perfectly normal. Just to prove it, see the other 2 messages I will
send to your mailbox.
Daniel Donnelly
________________________________________________________
See the Knowledge Base at http://support.ipswitch.com/kb
----- Original Message -----
From: "John Cesta - Lists" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, September 28, 2000 4:43 PM
Subject: [IMail Forum] sometimes user@ www.thedomain.com instead of
[EMAIL PROTECTED]
>
> We have a small problem. We use 5.08 imail.
>
> Everything works great. But every once in a while we, or one of our
clients,
> get an email of:
>
> [EMAIL PROTECTED]
>
> This account 99.9% of the time comes through as: [EMAIL PROTECTED]
>
> Is this a DNS issue or just a wierd sequence of events that causes this?
>
> John Cesta
>
> http://www.cybersmarts.net
> -------------------------------------------------
> ColdFusion ASP and ActiveState PERL Hosting
> --------------------------------------------
> SearchIt PRO - IIS Logfile Management Software
> DomainReportIt PRO - Transfer IIS installs
> http://www.serverautomationtools.com
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Len Conrad
> Sent: Thursday, September 28, 2000 4:42 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [IMail Forum] Caught the SOB
>
>
> You were lucky .... this time :))
>
> >We have a problem with people using software that would try many names
> >like:
>
> dumb@ss dictionary attack
>
> >It really dragged down server. They run all night and when we check
server
> >in morning it is dog slow.
>
> ... resuting in DoS for your users.
>
> This is the leading, dominant reason why we don't want to dump
> anti-spam, anti-virus, anti-relay, MAPS/ORBS, DNS validations onto
> the "users' box", aka Imail, but hide the users' box, aka "your
> moneymaker", behind a project like IMGate that would have stopped
> every byte of this DoS if the @sshole was on DUL. ie, having a
> second box is not a pain, but the principal advantage.
>
> Also, reversing the ip address 216.28.79.149 fails, so IMGate would
> have stopped him that way, too.
>
> With two IMGate boxes as primary and secondary MX's and the secondary
> MX also as your Imail outgoing gateway, the primary IMGate could have
> been fully occupied holding castle gates shut while users were
> reading their POP and sending mail through Imail plsu 2ndary MX,
> users not even aware that IMGate 1 was suffering DoS.
>
> If the DoS gets so severe that MX 10 can't respond, then Internet
> servers will try the loafing MX 20 and the incoming will get through
> to Imail by that door, since MX 20, being smarted up by our config,
> relays straight to Imail, NOT back to MX 10 (as customarily would be the
> case).
>
> Len
>
> http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
> http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
> An Archive of this list is available at:
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>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
> An Archive of this list is available at:
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>
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