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How to only allow mail from authenticated users on Exchange2007

I have a spam issue and the queues are filling up where the senders are from Gmail, Yahoo etc... I need only allow mails from users of our domain... how do i do this in Exchange 2007
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Itomicltd
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Itomicltd
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1 Solution
 
theruckCommented:
http://www.msexchange.org/articles_tutorials/exchange-server-2007/management-administration/managing-receive-connectors-part1.html
http://www.petri.co.il/configuring-exchange-2007-send-connectors.htm

but be aware not to cut out all the mails as by authenticating you want to filter only the mail coming from your LAN to the internet not vice versa. otherwise no email will come to your domain users
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Mahmoud SabryCommented:
to prevent spam from your won domain find the below link

http://exchangepedia.com/2008/09/how-to-prevent-annoying-spam-from-your-own-domain.html
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ItomicltdAuthor Commented:
msabry06,

The mail is actually coming from inside my network, i can see it in our queues...they are from random yahoo addressses..... i need to block this ASAP and only allow senders with our domain email address out...I am reading articles as we speak

P.
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ItomicltdAuthor Commented:
Hi theruck,

Neither article relates to what i am trying to do
See queue below... the mails are from yahoo accounts etc....not from our domain...how do i say -only allow mails from our domain out....
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ItomicltdAuthor Commented:
queue
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I QasmiCommented:
You can find Antispam filtering step by step :
http://www.petri.co.il/install-anti-spam-exchange-2007.htm
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ItomicltdAuthor Commented:
I have antispam installed and can choose to block senders. The mails are from so many different addresses (see image above) that  trying to add each one won't work (i have tried *@*.hinet.net for example and the catchall is not allowed.) I need to find what pc is spamming first and foremost...I need to find the IP of the device that is sending these mails to be queued in Exchange.....
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Mahmoud SabryCommented:
you can find detailed log for this using more scenario (this will show you the sender IP address)

1. as you installed Antispam on the server, then antispam agent logging is enabled, to see the log of the antispam agent, you can find it in the hub server in the below path

C:\Program Files\Microsoft\Exchange Server\TransportRoles\Logs\AgentLog

2. you can enable receive connector logging on the recive connector, to do this
open EMC, go to server configuration , HUB, right click the receive connector , properties
then change protocol logging level to verbose

to force the logging to start immediatly, restart the microsoft exchange transport service on the server

you can find the log for the receive connector in the below path
C:\Program Files\Microsoft\Exchange Server\TransportRoles\Logs\ProtocolLog\SmtpReceive
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ItomicltdAuthor Commented:
It only gives me IP of Exchange Server and Firewall.
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Mahmoud SabryCommented:
then your firewall work as a reverse proxy for your exchange server and all inbound connections to your exchange server end up on your firewall
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ItomicltdAuthor Commented:
Can you explain that a little more please ?
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