Scan message headers in bavd when checking for NDR

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mkalen
Posts: 33
Joined: Tue Jan 20, 2009 7:51 pm

Scan message headers in bavd when checking for NDR

Post by mkalen » Fri Feb 20, 2009 4:13 pm

Scanning message text is not a safe option for automatic determination of NDR:s. Custom NDR message texts or localized installations not in English or German will fail to be detected by OpenEMM with the current bav.rule list.

A safe way to detect NDR is checking the message headers also in the scan phase in bavd.

For example, Exim4 will add a special header to all NDRs.

If this feature is added to bavd, the following header is a 100% safe match for Exim4:
^X-Failed-Recipients:.*

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