asked on

fighing email scam

A malicious web site started sending emails to people with our company name . they put our name but using a strange domain name (wanadoo.fr)

Anyways to stop them ?

Paul MacDonald

Use a spam filter. They're not 100% effective, but modern ones do a pretty good job.

That said, your first line of defense is always an educated user. Make sure your people know to not open e-mail from people they don't know.

vSolutionsIT

Go through below articles..can be helpful. Also check if your server is open relay or not..
Scan your entire lan with latest antivirus to detect any spam generating virus/software exists in your lan.

Which version of exchange you are using ?

http://blogs.technet.com/b/fareedmk/archive/2007/06/26/how-does-a-reverse-ndr-attack-work.aspx

http://www.groundtactics.com/2010/10/14/fighting-exchange-reverse-ndr-attacks-2007-and-2010/

akhalighi

ASKER

folks , Sorry but you got it wrong .

1- they are not hacking us or using our email servers . they are using a display name as our company name . the actual email address that they are using is some strange domain : wanadoo.fr .

2- Our employess do not receive anything ; these emails are surfing the Internet ,so we received some calls reporting the scam.

ASKER CERTIFIED SOLUTION

Paul MacDonald

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SOLUTION

Neil Russell

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