Encrypting email with ASP?

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I am using a web hosting package that provides JMail and ASPEmail components - but not ASPEncrypt. I am trying to write asp pages to be held on a secure ssl server, that will email to us encrypted customer information. Does anyone have any idea how I can possibly do this???

I am not sure if PGP is installed on the server - would it have to be in order for me to be able to use PGP keys?
My thinking is that I should in some way be able to upload a public key to the server and then encrypt the emails using this - but I do not know how to do this without ASPEncrypt.

Any help,ideas or suggestions would be greatly appreciated

Jeremy