Re: [exim] Retry on 550 errors

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Autor: Dave Lugo
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A: exim-users
Assumpte: Re: [exim] Retry on 550 errors
On Fri, 8 Dec 2006, Marc Perkel wrote:
>
> One of the problems is that when you're in the spam filtering business
> if a spam gets through then it appears that I'm the source of the spam.
> People like gmail, yahoo, hotmail, comcast are also getting blacklisted
> every now and then.
>


Mabe you should have the recipient domain WL your IP.

> Then there are companies that are so swamped with spam that they change
> the rules and I get caught in the rule change. Godaddy had a server of
> mine blacklisted yesterday because my HELO didn't match my IP. Then
> there's SPF which totally sucks where the customer's server rejects
> email because SPF doesn't match when I'm forwarding email. So one
> customer is losing their Netflix email.


This is why SRS exists. Here's one implmentation for exim:

http://www.infradead.org/rpr.html


>
> Email protocols need to be rewritten.
>


Perhaps. There is also something to be said for understaning
better what's out there now.

-- 
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Dave Lugo   dlugo@???    LC Unit #260   TINLC
Have you hugged your firewall today?   No spam, thanks.
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Are you the police?  . . . .  No ma'am, we're sysadmins.