[Mimedefang] Massive spam with randon subjects

[Marcelo Souza]

Hi all,

	Recently I notice a massive incoming messages with subjects like
these:

Re: QCWGQOA, from the final
Re: WEARJM, of the accusations
Re: SSFE, never! a sudden
Re: XEFJTNV, temple of truth
Re: YOHKKWPN, offered her face
Re: IAANWBC, what's this now?'
Re: VE, this taletelling about

	And some unwise spammer, show me part of the construction method of
the line:

Re: %RND_UC_CHAR[2-8], the two quarrelling

	Some of you has build any filter or SA rule to catch it?
	Something like:

	subject =~ /Re:\s\w{2,8},\s.{4-30}/

	Seems to be arbitrary. Isn't it?


- Marcelo