这是记录的日志：
[08/22/2012 9:53 PM] - FAIL: IPN Validation Failed.
IPN POST Vars from Paypal:

mc_gross=1.00, protection_eligibility=Eligible, address_status=confirmed, payer_id=N9MJ3E2F72RSA, tax=0.00, address_street=1 Main St, payment_date=21:53:35 Aug 22, 2012 PDT, **payment_status=Completed**, charset=windows-1252, address_zip=95131, first_name=buyer, mc_fee=0.33, address_country_code=US, address_name=buyer buyer, notify_version=3.6, custom=3ba049446d1a922fccf9233c32794f16, payer_status=verified, business=775357_1345694569_biz@qq.com, address_country=United States, address_city=San Jose, quantity=1, verify_sign=ALJkApMs7H6RB6yOv.fdCxcGTa-tANEn6Te6SHeQgyIYAwZVU3TIrY0A, payer_email=775357_1345694424_per@qq.com, txn_id=60Y885950A771745Y, payment_type=instant, last_name=buyer, address_state=CA, receiver_email=775357_1345694569_biz@qq.com, payment_fee=0.33, receiver_id=BPFVTFG92JFY4, txn_type=web_accept, item_name=xxx,
 mc_currency=USD, item_number=, residence_country=US, test_ipn=1, handling_amount=0.00, transaction_subject=3ba049446d1a922fccf9233c32794f16, payment_gross=1.00, shipping=0.00, ipn_track_id=f9305268979, 

**IPN Response from Paypal Server:**
 HTTP/1.1 200 OK
Date: Thu, 23 Aug 2012 04:53:40 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=H9KuMTssqUu_tJf3Dam9rchmDS6GUQFouM5-KC3TtpHU199YtckVmNrqgSLfY9uIOFULbrXej6jtUILOdz4ImR-ruvjgSDh7RWeuAzPIVo40F7nN8Jxn1xVY2n-Ak8kFLmkUEm%7cSrCbIFQ6eG7qVUKiU5gXgRuZnXVRhIVr3AsqzO7z4At6yvgs588DjotxRox8tl_hJ4qi30%7cptKiyBJFIzge516dKd0-8zfnmTwVxF8Viz_QKeMZPIZPZ5Iu9OcdYiQyE8g861Be04KEt0%7c1345697620; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: cookie_check=yes; expires=Sun, 21-Aug-2022 04:53:40 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navcmd=_notify-validate; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navlns=0.0; expires=Wed, 18-Aug-2032 04:53:40 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: Apache=10.72.109.11.1345697620182214; path=/; expires=Sat, 16-Aug-42 04:53:40 GMT
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

7
**INVALID**
0