Re: [LUG] backup MX

[Simon Waters <Simon@xxxxxxxxxxxxxxxxxxxx>]

Dave Trudgian wrote:
> Well.... looking at my logs I know people aren't getting bounces from my 
> backup mail server at present, and I know that I am writing a router and 
> transport config at the moment so there won't be bounces from backup MX for 
> addresses turned down by the primary.

But we need such bounces for when people mistype addresses, and your
primary mail server is down or unreachable.

The RFCs exist for a reason ;)

Been pondering what "nearest neighbours" are - but the big question for
spam filtering is can you reasonably expect spam to look different from
genuine email.

The problem I have is huge spam volumes, some of which is very simiar to
genuine email, thus the majority of what the Bayesian and similar
filters let through is still spam.

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