(Slightly OT) Outblaze HELOs (was: Re: [Exim] Postfix -> Exi…

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Autor: Adam D. Barratt
Data:  
Para: exim-users
Assunto: (Slightly OT) Outblaze HELOs (was: Re: [Exim] Postfix -> Exim)
Suresh Ramasubramanian wrote, Sunday, August 17, 2003 1:33 PM
[...]
> 2. Reject all mail with HELO outblaze.com unless it comes from an IP
> with outblaze.com reverse DNS. To further help, such HELOs can only
> come from our IP blocks -
>
> 205.158.62.0/24
> 202.86.166.0/24
> 210.177.227.128/28
> 203.86.162.161/28


We've currently implemented this as blocking all the Outblaze domains
regardless of connecting IP, and *.outblaze.com unless it comes from one of
the above ranges (it was easier to do last night than the rdns match :-).

Is there any chance that one of your machines will ever HELO simply as
outblaze.com, or will it always be foo.outblaze.com?

Cheers,

Adam