ya nno problem.. it was just a recommendation .. anyways thanks for sharing such a gr8 script
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i decided to test the limits of my server as well as the limits of the registrar before it blocks ur Ip
this script has successfully tested about 10976 domains..
to test further i have placed about 45000 domains.. when the results come i will definately inform
update:
while checking the 15000 domains of the second lot i recieved this error
i think that if u own the server then u can increase this time which will make this script invincible