There is no difference in the installer for Xeams Community and Enterprise Edition. It will run as if you have purchased the Enterprise Edition for the first 30 days. It will then get converted to Community Edition unless a license is purchased.
icicibank.com has 13 txt record,with google dns and opendns query,sometime it only return 6 record,and the SPF not among the result,in that case,it will have problem with SPF,DMARC.