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Re: Long SPF Records

2005-03-25 10:34:13

How hard would it be for a large domain to simply consolidate the addresses of all its mail servers into one IP block?

a bad idea, since a lack of redundancy will permit network failures near that IP block to block outbound. The largest operators need to be able to route outbound mail, dynamic load balancing/distribution, via their internal networks to geographically diverse mail egress points,

Are we assuming that one IP block must be at one geographical location? Could you not have an IP block like 216.183.67.0/24 and have four smaller blocks within that one, with each block in a different city? This gets back to the routing table fragmentation question.

-- Dave

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