From: Blake Hudson (blakeispn.net)
Date: Mon Nov 26 2007 - 10:29:48 CST

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Noel Jones wrote:
> richard lucassen wrote:
>> - Postfix is accepting mail from the internet
>> - Postfix only transports example.com to the internal MTA
>> - internal MTA rejects mail for non-existent users with 5xx
>> - Postfix rejects the mail with a 4xx code
>>
>> I want Postfix to use 5xx code and not 4xx. I know it is possible, but I
>> forgot the name of the option.
>>
>> Anyone?
>>
>> R.
>>
>
>
> Your description is a little vague. Maybe you mean
> unverified_recipient_reject_code.
> To jog your memory you might look at
> # postconf | grep reject_code
> and then look up the parameters in
> http://www.postfix.org/postconf.5.html
> to see what they do.
>

Why isn't it an option to set postfix to respond with the same code that
the upstream uses?

For example, if the upstream says "552 5.2.2 Over quota", why wouldn't
recipient validation pass this directly onto the client instead of "550
<userdomain.tld>: Recipient address rejected: undeliverable address:
host /var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp] said: 552
5.2.2 Over quota" or "450 <userdomain.tld>: Recipient address rejected:
undeliverable address: host
/var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp] said: 552 5.2.2
Over quota".

-Blake

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