On Mon, Jun 16, 2008 at 12:53:09PM +1000, Daniel Pittman wrote: > Erik de Castro Lopo <[EMAIL PROTECTED]> writes: > > John Ferlito wrote: > > > >> In my opinion SPF pretty much protects you from one thing, joe-job > >> attacks. ie bounces where someone else has used your domain as the > >> from address. > > > > Bingo. That alone is worth the (very cheap) price of admission. > > While I agree with the other parts of this, the price of admission is > low *only* for leaf sites, and then only for sites that have a tightly > controlled user base. > > Replacing my email infrastructure, which only services a dozen people, > would cost me somewhere on the order of twelve hours which I cost at > around $1,716 -- before overheads like an outage for the process -- in > order to obtain support for SRS.[1]
why would you need to do that, place a Linux box as a gateway inbetween your current infrastructure and the internet > > > For someone larger, like many of my clients, this would actually > increase significantly from there.[2] Migrating a Lotus Notes or > Exchange environment to use SRS is hard(tm). I know of a telco (1 of the top 2), that did the above, they were invested in exchange (and a range of virus scanning gateways before the corporate server) all protected by a couple of linux boxes > > Regards, > Daniel > > Which isn't to say that it wouldn't be worth the cost, just that it > isn't nearly as small as you seem to suggest. > > > Footnotes: > [1] ...without SRS I would need to modify the server to forbid .forward > style mail forwarding, which would otherwise cause me to send mail > outside compliance with SPF. This would be ... difficult, actually. > > [2] In fairness, for others it would be a relatively trivial > modification to deploy SRS. It all depends on their platform, and > how much budget they have for inserting other servers in the > outbound path... > > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- "I think it's important to bring somebody from outside the system, the judicial system, somebody that hasn't been on the bench and, therefore, there's not a lot of opinions for people to look at." - George W. Bush 10/04/2005 Washington, DC On the nomination of Harriet Miers to the Supreme Court
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