Scott Kitterman | 20 Dec 02:35

Re: Newbie Question

On Thu, 20 Dec 2007 00:55:56 +0000 (UTC) Thomas <supamaki <at> gmail.com> wrote:
>I just started work as a tech for an ISP. 
>I was setting up email for a client today. 
>He changed ISP's because someone 
>was sending Spam from his email account(s).
>I understand I can set up an SPF record on his end.
>How do you get all other mail servers to check for the record? 
>It seems that even if this is set up, and millions 
>of pieces of spam are being blasted as coming from this
>account, unless ever mail server receiving them is 
>checking for SPF records,
>it's not going to help. Am I reading this wrong? 
>Any guidance would be appreciated.
>

You aren't entirely wrong.  For a perfect result, that's correct, but we 
don't generally need to be perfect.  All we need is enough rejection to 
deter spammers from forging SPF protected domains.  Many people, myself 
included, have experienced a major decline in bounces due to spammers 
forging their domains.  Of course not everyone is deterred, so YMMV.

Scott K

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Gmane