Friday, August 21, 2009 10:26 AM
To: MS-Exchange Admin Issues
Subject: Re: BLOCKING SPOOFED INTERNAL EMAIL--FOLLOW UP!
On Thu, Aug 20, 2009 at 4:57 PM, Murray Freeman wrote:
> If we use the *...@alant.org in the SPF, we then create a problem with
legitimate
> email coming from an external mail se
On Thu, Aug 20, 2009 at 4:57 PM, Murray Freeman wrote:
> If we use the *...@alant.org in the SPF, we then create a problem with
> legitimate
> email coming from an external mail server, our website which is hosted by a
> third party.
As ME2 says, you should add your web server's IP address to t
You won't find a way to do setup exceptions to sender filtering because
there's no such facility (short of a custom event sink anyway).
Time to ask yourself, is it REALLY necessary that this external website
generate E-mails that appear to come from our internal users? Do those
messages need
You can use the "include" option if you can do it based on sender
domain name, or use the "ip4" option to specify specific valid sending
IP4 addresses.
e.g. You can easily just add 'include:constantcontact.com" if you need
to allow ConstantContact to send emails on your behalf, and you trust
that
59 PM
> *To:* MS-Exchange Admin Issues
> *Subject:* Re: BLOCKING SPOOFED INTERNAL EMAIL
>
>
>
> One note of warning. I've tried to do this before, but quickly found out my
> entire sales department used a product that sent daily reports where their
> email addres
Hmm, you let those other sites to send email claiming to be you? -
pretty trusting.
From: Eric Woodford [mailto:ericwoodf...@gmail.com]
Sent: Tuesday, August 18, 2009 2:59 PM
To: MS-Exchange Admin Issues
Subject: Re: BLOCKING SPOOFED INTERNAL EMAIL
One
Robert [mailto:bch...@medaille.edu]
> *Sent:* Tuesday, August 18, 2009 1:19 PM
>
> *To:* MS-Exchange Admin Issues
> *Subject:* RE: BLOCKING SPOOFED INTERNAL EMAIL
>
>
>
> Do you just add a rule with your domain listed?
>
>
> --
>
>
Excellent answer - FAR better than Outlook even for small orgs.
From: Carl Houseman [mailto:c.house...@gmail.com]
Sent: Tuesday, August 18, 2009 10:28 AM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
It's not a rule a
er filtering on the SMTP VS.
From: Chyka, Robert [mailto:bch...@medaille.edu]
Sent: Tuesday, August 18, 2009 1:19 PM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
Do you just add a rule with your domain listed?
_
From: Carl Houseman [mailto:c.hou
Do you just add a rule with your domain listed?
From: Carl Houseman [mailto:c.house...@gmail.com]
Sent: Tuesday, August 18, 2009 1:16 PM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
Absolutely, that's what the OP asked
Absolutely, that's what the OP asked about and that's what I answered about.
From: Chyka, Robert [mailto:bch...@medaille.edu]
Sent: Tuesday, August 18, 2009 1:10 PM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
On Exchange 2003 too?
_
On Exchange 2003 too?
From: Carl Houseman [mailto:c.house...@gmail.com]
Sent: Tuesday, August 18, 2009 1:01 PM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
Exchange's sender filtering can also block inbound Internet mail
Exchange's sender filtering can also block inbound Internet mail from your
own domain.
Carl
From: Senter, John [mailto:john.sen...@etrade.com]
Sent: Tuesday, August 18, 2009 8:54 AM
To: MS-Exchange Admin Issues
Subject: RE: BLOCKING SPOOFED INTERNAL EMAIL
What inbound mail gatew
: RE: BLOCKING SPOOFED INTERNAL EMAIL
You could look up info about the "Sender ID". Maybe implementing it helps.
Markko Meriniit
-Original Message-
From: Murray Freeman [mailto:mfree...@alanet.org]
Sent: Thursday, August 06, 2009 12:28 AM
To: MS-Exchange Admin Issues
Subject
: BLOCKING SPOOFED INTERNAL EMAIL
You could look up info about the "Sender ID". Maybe implementing it
helps.
Markko Meriniit
-Original Message-
From: Murray Freeman [mailto:mfree...@alanet.org]
Sent: Thursday, August 06, 2009 12:28 AM
To: M
You could look up info about the "Sender ID". Maybe implementing it helps.
Markko Meriniit
-Original Message-
From: Murray Freeman [mailto:mfree...@alanet.org]
Sent: Thursday, August 06, 2009 12:28 AM
To: MS-Exchange Admin Issues
Subject: BLOCKING SPOOFED INTERNAL EMAIL
Lately we're get
If you are a single server exchange operation, you can create an Outlook
rule that checks the header for @alanet.org and delete it or move it to
a spam folder. Real internal email won't have anything in the headers.
Of course that will also affect any legitimately spoofed email. (travel
confirma
Ninja does a good job at blocking these...i don't think Outlook is smart
enough.
On Wed, Aug 5, 2009 at 4:27 PM, Murray Freeman wrote:
> Lately we're getting a lot of sp*m that appear to be coming from our own
> staff. It's easy to spot, but our sp*m filter isn't catching them. The
> reason the
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