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Re: Spam:When MX is not present, fall back to A

2003-12-15 20:26:35
In <714EB841B8E8024D91E725F6E3F5F7395136BB(_at_)citadelex(_dot_)corporate> 
"Dustin Trammell" <dtrammell(_at_)citadel(_dot_)com> writes:

Which do you think would be better, guys?

I'd suggest breaking with tradition, as tradition is wrong, IMO.

I suggest breaking with tradition also.  The backwards compatiblity
can easily be allowed if the domain owner desires it.


I would also suggest that the SPF wizards not add the A: option by
default, unless the domain doesn't have MX records.  Even then, it
should warn that it is better to add MX records since the dependance
on A records requires everyone to do two DNS lookups.

The A: option is, IIUC, designed for larger systems that have seperate
outbound MTAs.


-wayne

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