Re: [exim] RFC 5321, 5322

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Author: Jeroen van Aart
Date:  
To: exim-users@exim.org
Subject: Re: [exim] RFC 5321, 5322
Martin.Hepworth wrote:
>
> Nice write up at...
>
> http://blog.mailchannels.com/2008/10/update-to-email-standards.html


Quoting writer's interpretation:

"Bounces should only be sent if the receiver knows they'll be "usefully
delivered." This is code for: Don't sent bounces when your system
rejects spam or virus traffic, or you'll become an Internet pariah."

That sounds nice in theory. But how can you ever in a sane manner
determine with reasonable certainty a bounce will be usefully delivered?
If you try to make this work it makes it also more likely legitimate
bounces will not be sent out. Which in turns conflicts with:

"Silently discarding messages is not prohibited, but it is strongly
discouraged."

Or am I missing something totally obvious?

Greetings,
Jeroen