RE: Advanced tricks I use to get rid of spam using MX 4xx [X200611277046]

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-----Original Message-----
From: Uncle George [mailto:netbeans@gatworks.com]
Sent: Monday, November 27, 2006 4:56 PM
To: dl@blackpacket.net;qmail@list.cr.yp.to
Cc: 
Subject: Re: Advanced tricks I use to get rid of spam using MX 4xx


>     To provide reliable mail transmission, the SMTP client MUST be able
>     to try (and retry) each of the relevant addresses in this list in
>     order, until a delivery attempt succeeds.  

I think you are missing the *MUST* in the first sentence. There is no 
try of any other MX if a connection is made, but delivery fails for any 
reason.

> If you look carefully, at the top of the RFC, "SHOULD" is defined: 


The SHOULD addresses a configurable limit of MX tries.