Preventing Email Spoofing

Posted by DT on Server Fault See other posts from Server Fault or by DT
Published on 2010-06-10T02:26:32Z Indexed on 2010/06/10 2:33 UTC
Read the original article Hit count: 377

Filed under:

email

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spam

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google-apps

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spoofing

I use Google Apps with my domain.

Recently, we have begun to receive spam that gets past Google's spam filters. They are from our own email addresses.

I am wondering how to prevent this kind of email spoofing.

We use an SPF record with the "~all" setting. I'm wondering if I can upgrade that to "-all". However, Google Apps recommends against it. Also, I'm not 100% sure that our SPF record is complete.

Any suggestions?

Thank you ever so much.

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