We have some people coming to ccel, gathering information about us and then contacting us by email saying that they are pastors, etc.. and then asking/hinting that you should send them money. I do not know nor can I prove that they are or are not missionaries/pastors. I would strongly suggest that you do not send money or personal contact information (phone numbers/addresses) to anyone that contacts you in this way.
Donate, yes, to those organizations that have denominational/church recognition (IE., Baptist or Roman Catholic backing) or have a verifiable U.S. office.
If you feel that you can not deal with this then i suggest that you either Turn off your contact page [click on the "My Account" link on the upper right margin, then click on the "edit tab", select "account settings", uncheck the "contact settings" at the bottom], or setup an email address for CCEL use only.
I am sorry that this is happening.