SPF

[Julian Field]

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At 18:04 10/08/2004, you wrote:
>One of the beauties of SPF as I 'sort of' understand it, is the DNS
>record is checked first and only if it passes is the server opened to
>receive that email (seems like MailScanner is the front line and that
>would be the place to do this?). I'm not sure about exactly what happens
>and when, with MailScanner, but I would like to know that the first
>check made is at the DNS level and only then receive the email and put
>it through whatever paces are in place, AV, AS and so forth. This would
>be a huge reduction in server loads. Why do all that processing if only
>then at the MTA level, does the email get rejected (server refuses to
>download it)?
>
>Would this be the case with the current MailScanner? I am running RHEL
>and sendmail. I will be adding the SPF sendmail patch at an appropriate
>time.

 From your description above, you want to do your SPF checks at the MTA
level, so use sendmail to do it, not MailScanner.
--
Julian Field
www.MailScanner.info
Professional Support Services at www.MailScanner.biz
MailScanner thanks transtec Computers for their support
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