This page lists 30 spams claiming to be from MessageReach (xmr3.com), received in the period September 2009--March 2010, spamvertizing the following eight different organizations:
I did not ever sign up to receive advertising email from any of these organizations. I have no prior relationship of any kind with five of them. With Maple, my only "prior relationship" consists of having been spammed by them in the past. With Elsevier and Springer-Verlag, my only relationship has been the submission and refereeing of papers for their journals, and I never signed up to receive email about textbooks (or any other kind of promotional email).
MessageReach appears to be a spammer for hire, which is perfectly happy to send unsolicited bulk email on behalf of its customers. It is beyond belief that, if MessageReach required its customers to use opt-in lists, it would have eight different customers who all improperly put the same email address on their lists.
The spams contained many tracking codes; I have X'ed out those that I recognized as tracking codes. In particular, the sender addresses in the first "From" lines of the messages appear to be tracking codes, and have been X'd out (leaving the "@xmr3.com" part intact).
Eleven spams for Elsevier math textbooks:
Six spams for FacultyBooks.com:
Two spams for the Maple computer algebra system:
Two spams for Springer-Verlag:
Three spams for the "College Board's Curriculum Survey":
Two spams for SAS Education Practice:
Three spams for MDR (education marketing research):
One spam for "Cengage Learning" (Brooks-Cole):