As early as 2004, cnet news posted an article on Spam „getting religious“. Their diagnosis pointed out spam mails which brought along a religious message, so to speak an updated version of early missionary mails, e.g. the Pauline epistles (my comparison, not theirs).
Up to now, I can’t remember receiving any spam trying to convince me of the righteous faith or the like. But with my own e-mail inboxes in mind, I lately got the feeling of an increase in the number of religious narratives in everyday spam mails – for the time being a not very scientific trigger, but it led me to some at least roughly religious-studies-related considerations. Also, it made me read my spam mails quite thoroughly and collect those with religious references for some weeks.