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UTM Email Protection

Hi,

We are getting some spoof email emails of our domain name from external. looking to see if there is any easy way to stop spoofing of our domain name from external sources on the utm.

I cannot find any setting to do this on the appliance, we are running a virtual utm appliance on hyper-v

Thanks for any info

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0 BAlfson over 9 years ago

Hi, Neil, and welcome to the UTM Group.

The answer is that there's no way to do it at present. I know there are a couple http://feature.astaro.com suggestions about this.

Cheers - Bob

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0 Scott_Klassen over 9 years ago

Not so fast buckeroos. An SPF record for your domain along with enabling SPF checks might help. The spoofed emails will have a different sending IP than yours, so they should fail.

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0 vilic over 9 years ago

First line of defence is to add *@mydomain.com to SMTP -> Antispam -> Blacklisted Address Patterns.

This will prevent a fake mailer to send e-mail outside your company as a user@mydomain.com in the FROM field.
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0 HiRN over 9 years ago in reply to Scott_Klassen
Yes SPF record is the magic. Every E-Mailserver checking your SPF entry will deny spoofed E-Mails from you domain.

Here a link for a simple start: www.microsoft.com/.../
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