How to Block helo command to send a Spoof mails
On Mon, 9 Apr 2012 17:39:10 +0000, Balwan Singh wrote:
>In my environment if I try to telnet from the internet to an exchange server on domain1.com I can send an email as anyrandomuser@domain1.com to actualuser@domain1.com. That means i can sent mails from any mail id( from my domain) to any mail id. wheather
it is internal or external
>
>Is there a way to prevent anyone from doing this.
Sure. Use SenderID.
http://www.microsoft.com/mscorp/safety/technologies/senderid/default.mspx
http://www.openspf.net
---
Rich Matheisen
MCSE+I, Exchange MVP
--- Rich Matheisen MCSE+I, Exchange MVP
April 10th, 2012 12:27am
Hi Experts,
In my environment if I try to telnet from the internet to an exchange server on domain1.com I can send an email as
anyrandomuser@domain1.com to
actualuser@domain1.com. That means i can sent mails from any mail id( from my domain) to any mail id. wheather it is internal or external
Is there a way to prevent anyone from doing this.
Thanks in advance
Balwan Singh
Free Windows Admin Tool Kit Click here and download it now
April 27th, 2012 1:48pm
What version of Exchange are you using? If it's 2007/2010 , what are the settings on the receive connector you are attaching to (Assuming it's probably default).
April 27th, 2012 3:58pm
On Mon, 9 Apr 2012 17:39:10 +0000, Balwan Singh wrote:
>In my environment if I try to telnet from the internet to an exchange server on domain1.com I can send an email as anyrandomuser@domain1.com to actualuser@domain1.com. That means i can sent mails from any mail id( from my domain) to any mail id. wheather
it is internal or external
>
>Is there a way to prevent anyone from doing this.
Sure. Use SenderID.
http://www.microsoft.com/mscorp/safety/technologies/senderid/default.mspx
http://www.openspf.net
---
Rich Matheisen
MCSE+I, Exchange MVP
--- Rich Matheisen MCSE+I, Exchange MVP
Free Windows Admin Tool Kit Click here and download it now
April 27th, 2012 5:35pm
Hi Russ,
its 2007 and receive connector setting is default.Balwan Singh
April 28th, 2012 12:50am