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Re: Re: DNS load research

2005-03-20 17:34:48
Radu Hociung wrote:
Radu Hociung wrote:
I'm sorry... a correction is needed. There are still some bugs in spfcompile. The equivalent record should read:

    "v=spf1 ip4:209.91.136.161/28 ip4:216.191.52.64/27
    ip4:216.191.52.70 ip4:216.191.52.6/31 ptr
    include:rogers.blackberry.net include:blackberry.net
    include:rogers.com include:vianet.ca include:bellnet.ca -all"

Arghhh! I think I am getting tired, because I make mistakes. I'll make one last attempt to getting my recommendation right:

Your current record is

"v=spf1 ip4:209.91.136.161/28 ip4:216.191.52.64/27 a mx ptr
a:mail.ashtonwoodshomes.com include:rogers.blackberry.net
include:blackberry.net include:rogers.com include:vianet.ca
include:bellnet.ca -all"

greatgulfhomes.com        IN   A   216.191.52.70
greatgulfhomes.com        IN   MX  mail.greatgulfhomes.com
mail.greatgulfhomes.com   IN   A   216.191.52.66
mail.ashtonwoodshomes.com IN   A   216.191.52.67

If you were to replace the hosts under your control with their IP addresses, and remove the includes which do not publish SPF records, and after noticing that the IP addresses above are already covered by ip4:216.191.52.64/27, your equivalent SPF record is:

"v=spf1 ip4:209.91.136.161/28 ip4:216.191.52.64/27 ptr -all"

This costs only 2 queries, compared to your current record which costs 11 queries.

Regards,
Radu.


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