On Wed, 10 Jul 2013 10:50:51 +0000 Andreas Schulze wrote: > > Hello, > > today I found messages with strage headers: they had an empty value. > > example: > From: ... > To: ... > X-MS-TNEF-Correlator:<space><newline> > Date: ... > > Is this against any rfc and could/should [not?] be rejected or used > to identify spam?
There are several rules that will hit on specific empty headers, but Spamassassin itself can create empty headers e.g. X-Spam-Languages: when it can't identify a language.
