<div>
assuming you are talking about email spams this has nothing to do with closing or opening ports, you need to install an antispam server for this.<br />
<br />
To prevent internal spam going out and being blacklisted you should deny out going port smtp to all clients and allow it only to your exchange server
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assuming you are talking about email spams this has nothing to do with closing or opening ports, you need to install an antispam server for this.

To prevent internal spam going out and being blacklisted you should deny out going port smtp to all clients and allow it only to your exchange server

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i am seeing lot of email in queue viewer mail from online.hsbc.co.uk, <br />
<br />
its spam and i dont know were its coming and neither vamsoft is blocking it <br />
<br />
i want to trace from were its orginating and how to stop this .<br />
<br />
i want to trace from which client pc the Spam is coming
</div>


i am seeing lot of email in queue viewer mail from online.hsbc.co.uk,

its spam and i dont know were its coming and neither vamsoft is blocking it

i want to trace from were its orginating and how to stop this .

i want to trace from which client pc the Spam is coming

<div>
<div class="content wysiwyg-content">
hi all,<br />
<br />
could you tell me which are the ports needed for exchange 2007 -<br />
and which ports can be blocked by windows 2008 server firewall .<br />
<br />
also how to find spam comming from my local area network .
</div>
</div>


hi all,

could you tell me which are the ports needed for exchange 2007 -
and which ports can be blocked by windows 2008 server firewall .

also how to find spam comming from my local area network .

which are all ports to block on exchange server 2007 to prevent spams (unknown) being send

Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.

AntiSpam

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.