Also, If the remote user is using Outlook Express, he can use authentication
for his outgoing email... No matter how tight your SMTP is buckled down, an
authenticated user can send email!
Regards,
Jim Jones, Jr.
Network Engineer
Arcom Control Systems, Inc.
http://www.arcomcontrols.com
816-941-7025 x245
----- Original Message -----
From: "Jon McMullin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 09, 2000 6:24 PM
Subject: RE: [IMail Forum] ORBS Solution
>
> Hi Dustin,
>
> This will not affect remote users using pop3, as it only applies to the
smtp
> service.
> If you have remote users with roaming accounts, that are dialing up from
> many different isp's,
> you have most likely given them an account in one of your domains.
> They will have a FROM and REPLY TO email address such as
> [EMAIL PROTECTED]
> As long as yourdomain.com is in the accept.txt file, they will be granted
> access to the SMTP server.
>
> If they don't have an account in one of your domains, you could add their
> domain (or specifically their exact email address)
> into the accept.txt to allow them to send mail through your server.
> But if they have a mailbox in another domain, they probably are using that
> domains smtp server as well, so this is probably not necessary.
>
> Foreign domains will still be able to send mail to local users because it
is
> being delivered directly to the POP3 service by another domains SMTP
server.
>
> I think to a creative spammer, they would be able to impersonate one of
your
> local users
> and put in [EMAIL PROTECTED] and still get away with it.
>
> I have received many emails with no sender, or a forged sender address,
> so i am not sure that this method will be 100% effective.
>
> I haven't tried this, because I don't know the tactics of these spammers.
If
> anyone knows how to try this, please post it to the list.
>
> Jon McMullin
> Systems Administrator
> The Forest Industry Network
> http://www.forestindustry.com
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Dustin Krysak
> Sent: Thursday, March 09, 2000 4:09 PM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [IMail Forum] ORBS Solution
>
>
> How will this effect remote users using pop/smtp access?
>
> will they have to use the smtp authentication?
>
> -dk
>
>
> -----Original Message-----
> From: Jon McMullin [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, March 09, 2000 4:00 PM
> To: Imail_Forum@List. Ipswitch. Com
> Subject: [IMail Forum] ORBS Solution
>
>
> Hi All,
>
> I have found the solution to get ORBS.ORG off our backs.
> Set SMTP Security to "Relay mail for local hosts only"
> Then edit the accept.txt file to contain any domain you want to allow to
> relay mail.
> This includes all your local hosts, whether they are dedicated to an IP
> address or if they are virtual hosts.
> Do not put an asterisk or an @ sign, the syntax should be as follows
>
>
> alloweddomain1.com
> alloweddomain2.com
>
> This seems to work great for blocking out unwanted senders and removing
> yourself from the ORBS database.
>
> Jon McMullin
> Systems Administrator
> The Forest Industry Network
> http://www.forestindustry.com
>
>
>
>
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