On 2/18/2014 10:54 AM, Vladimir Kozlov wrote: > I'd like to reject messages without some headers (say, Date: or > Message-ID:). > As far as I understand, headers-checks and body-checks could be done > as described at http://www.postfix.org/BACKSCATTER_README.html > > The only question I could not find answer to is: how to write regexp > for _absence_ of a header(s)? > > Kind regards, > Vladimir. >
The header_checks feature scans one header at a time and does not save state between headers, making it impossible to detect missing headers. To detect missing headers you'll need a content filter such as SpamAssassin. -- Noel Jones
