On 2011-10-23 14:43:00 -0700, Steve Atkins wrote:
Mail forwarding is one common cause of failure. If you're sending mail
to someone at @ieee.org and they forward it on to their @aol.com
account, and you and AOL decide between you to enforce SPF -all then
that mail will be undeliverable - and there's no way either you or AOL
can predict that.
Actually, I can because I told ieee.org to forward my mail to aol.com
and I know that I enabled SPF for my aol.com address. There is nothing
unpredictable about that - I control both sides of the forwarding.
What AOL has to predict is that some of their customers may want to
forward from another mail address to their AOL mailbox and provide a way
to exempt specific sender IP addresses from SPF checks.
hp
--
_ | Peter J. Holzer | Web 2.0 könnte man also auch übersetzen als
|_|_) | Sysadmin WSR | "Netz der kleinen Geister".
| | | hjp(_at_)hjp(_dot_)at |
__/ | http://www.hjp.at/ | -- Oliver Cromm in desd
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