[Gllug] How to handle spam bounces from secondary MX server

[Peter Corlett]

On Mon, Dec 08, 2008 at 12:54:21PM +0000, Alain Williams wrote:
> On Mon, Dec 08, 2008 at 12:43:44PM -0000, John Winters wrote:
[...]
>> Interesting idea.  Isn't there (wasn't there?) a requirement to have a
>> secondary as well as a primary?
> Yes there is.

Cite, please. Are you perhaps getting confused with DNS (where secondarying
is an exceedingly good idea)?

It may well have once been good practice, but it's debatable that this is
still the case. A multi-primary setup would be much better.

> It is a good idea because there are some crappy MTAs that bounce mail
> after a very short time if they can't get through -- which could happen if
> your main MX is offline for whatever reason.

This is the usual argument against greylisting too, but I remain unconvinced
there either. Are there really that many sites using fundamentally broken
mail software that mostly works by chance, and which you absolutely must
receive every mail from? I doubt it.

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