Checkout Issue on Paypal: Invalid Email Address …Post author:larryPost published:Dec 20, 2005Post category:DiaryCheck 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 Sister started going to church Jul 24, 2005 A Meeting w/ GM of SED-Electronics Aug 17, 2005 Visit Wun Chuen Sin Kwoon (雲泉仙館) Feb 6, 2014