mail malady - dns/postfix

Norberto Meijome freebsd at
Wed Aug 31 16:43:33 GMT 2005

Greg Barniskis wrote:

> Hard to say, but as far as a management discussion goes, it is clear 
> that this problem has really nothing to do with your selection of 
> FreeBSD as DNS/mail host, and (barring better failsafe procedures like 
> IP number migration) would have occurred regardless of the OS chosen. 
> The problem as such is 3rd party systems you can't control.

indeed. my first rule of 'planned' DNS changes: lower refresh to minimum 
acceptable. then when I'm sure everything works, up it to my defaults.

And , btw, if you hear of those DNS hosters that tell you they have 
"instant propagation" , make sure you read the very very small footprint 
that says "within our network".  i.e., DNS is a game where all DNS 
servers play along...or not ;)


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