From: D Hill (d.hillyournetplus.com)
Date: Fri Apr 25 2008 - 17:56:35 CDT

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On Sat, 26 Apr 2008 at 00:31 +0200, postfixprotection-fault.ch confabulated:

> On Fri, Apr 25, 2008 at 10:21:13PM +0000, D Hill wrote:
>> On Sat, 26 Apr 2008 at 00:03 +0200, postfixprotection-fault.ch
>> confabulated:
>>> This patch will let you allow to modify the behaviour so your postfix
>>> will accept the e-mail in the case the primary MX is not reachable.
>>
>> I'm not a C programmer. If you accept that message which later on turns out
>> the recipient does not exist. What happens? If you generate a bounce, you
>> generate backscatter.
>
> Yes, I'm aware of this fact. However, a backup MX should take care of
> the mail if the primary is currently not reachable. At least from my
> point of view. Yes, their is the danger of producing backscatter but
> under normal circumstances the primary MX would not be that long
> unreachable.
>
> Beside of this, the option is optional and do not modify the default
> behaviour of postfix.

I'm not saying it's a bad idea as I haven't given thought to every
possible angle. Personally, this would be an expense I could not afford.

If our primary email server was down for one(1) hour, just our one filter
server alone would have bounced over 11,000 messages. As of five minutes
ago, I checked the logs for the day and there were over 265,000 messages
rejected for accounts that do not exist.

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