GNUPG/PHP problems

I'm having problems with the following code. I keep getting "Public Key not found" errors. I'm sure I've listed the key correctly and the ISP swears that he added the key to "www"s key ring and the putenv directory is correct. putenv("GNUPGHOME=/var/www/.gnupg"); $fp = fopen("/usr/home/dogma/spad/indata", "w+"); fputs($fp, $email); fclose($fp); system("/usr/local/bin/gpg --encrypt -ao /usr/home/dogma/spad/outdata -r 'Joe Schmoe <jschmoe@building.com' /usr/home/dogma/spad/indata "); unlink("/usr/home/dogma/spad/indata"); $crypted = "/usr/home/dogma/spad/outdata"; $fd = fopen($crypted, "r"); $email = fread($fd, filesize($crypted)); fclose($fd); unlink("$crypted"); Any ideas where to look next? Thanks in advance, Tom >>.>>.>>>.>>>>>.>>>>>>>>> Tom Beidler Orbit Tech Services 805.455.7119 (cell) 805.682.8972 (phone) 805.682.5833 (fax) tbeidler@mindspring.com >>.>>.>>>.>>>>>.>>>>>>>>>