Messages from Alice A. Walker, Richard K. Lee, Tom Theroux, George King and others all appear to originate from the same source. They have the same common attributes

X-Mailer: Microsoft Outlook Express 6.00.2600.0000

from domain always starts with [0-4ab] ( and are common domains)

In and of itself, these don't explicity flag as spam, but are useful to detect new strains when the name changes.

[A-Z][a-z]+ ([A-Z]\. )?[A-Z][a-z]+ <.*@[0-4ab] is a good pattern for finding them in the From: header

Messages from "SEO Action Team" encoded as =\?iso-8859-1\?B\?U0VPLUFjdGlvbiBUZWFt\?= also seem to folow the same @[0-4ab] pattern

Frank J. Hall showed up on November 19, then left on November 21.

Alice A. Walker mails seems to have dried up n November 26, with nothing, so far, replacing them.

Alice and Frank both returned and brought along Emily A. Jones on Dec 8, 2004.