Checkout Issue on Paypal: Invalid Email Address … Post author:larry Post published:Dec 20, 2005 Post category:Diary Check access rights for the key, certificate, and those directories holding these files! Not the email address issue, but the issue is that webserver can’t access the key or cert. thus it couldn’t pass it to Paypal. You Might Also Like Successful Surgery Jul 22, 2005 PMP Can’t Play Any Download Video??? Feb 1, 2006 Accident of Mother-in-law Jul 17, 2005