<div>
thanks<br />
<br />
I already applied third party solution now. it works well. thanks<br />
j
</div>


thanks

I already applied third party solution now. it works well. thanks
j

<div>
<div class="content wysiwyg-content">
my mail server is open. some people are using telnet 25 on mail.xxx.com and send me email using my email address. <br />
<br />
At this moment telnet mail.xxx.com 25 never ask any authentication or access denied message and allow to send email to any body from outside.<br />
What shall I do to block this from my exchange 2010 server. &nbsp;<br />
<br />
Kindly give me suggetions and steps to take action<br />
<br />
Regards<br />
j
</div>
</div>


my mail server is open. some people are using telnet 25 on mail.xxx.com and send me email using my email address. 

At this moment telnet mail.xxx.com 25 never ask any authentication or access denied message and allow to send email to any body from outside.
What shall I do to block this from my exchange 2010 server.  

Kindly give me suggetions and steps to take action

Regards
j

spoofing email issue

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.