Question : DDos Protection on Cisco Pix 515E

Does anyone from you guys know the best way to protect the web server from DDOS behind Cisco pix 515e on IOS 7.1(2) over https using static rule?
What I want here is to block the DDos attack automatically and inform us about the attack by email.
Any help will be useful.

Answer : DDos Protection on Cisco Pix 515E

Please refer this page about tcp syn protection:

http://cisco.biz/en/US/products/ps6120/products_tech_note09186a00809763ea.shtml