Yes, if the words "secure communication" in all lower case appear anywhere in the message, then the message won't be delivered. There can even be text appended to the beginning and end of the words [0]. i.e. foosecure communicationbar will also not be received. However; there must be exactly one blank space between the words.
Having said that, this is not working for everyone. I am trying to gather data on this to figure out where the issue might stem from. Would you be comfortable disclosing the make/model and carrier service of the sender and receiver. If you would prefer, you may contact me directly with this information and I won't include your identity in the record. My email is linked in the header of the blog post. I also have a public key [2] if you feel so inclined to send me a secure communication :-P
I respect if it's not what you're looking for but you may be able leverage yourself into a good position (with the community and with PG) as a result of the publicity + traction combo.
