If the fall back runs ASSP (it's a Proxy) the sending MailServer has to
backscatter, if your primary ASSP rejects the mail - no problem. If
fallback is a real MailServer he has to backscatter - it's a Server - but
rejecting a mail after it has passed your gate, is a bad behavior! All
bounce mails are rejected from isp like every IP, only IP's in
'noBackSctrIP' will pass the backscatter checks anyway!
>Will it just accept the bounce message from the fallback-server but not
pass on?
>Is the 'send250OKISP' involved with this behaviour?
Yes, if this is the configuration on your primary ASSP!
Thomas
"JP van Melis" <[EMAIL PROTECTED]>
Gesendet von: [EMAIL PROTECTED]
07.07.2008 15:56
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[Assp-test] Detecting backscatter
I have a question about the detection of invalid bounces.
If I have a domain with 2 MX-records.
The first one points to my mailserver which is running ASSP.
The 2nd mailserver is a generic fallback-server (might be protected by
ASSP).
This fallback-server can't use the MSGid to see if a bounce is valid or
not,
so if everything else is more or less valid it will accept the mail.
When it sends this mail to the primary server it might notice this is an
invalid bounce (BTW The fallbackserver is configured as ISPIP). If it
would
reject this mail the fallback-server will backscatter.
Will it just accept the bounce message from the fallback-server but not
pass
on?
Is the 'send250OKISP' involved with this behaviour?
JP
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