Adminsignconnectinboxx.com — Admin spammer

Dear sir,
In the past 24 hrs I got 124 spam mails from [protected]@connectinboxx.com as under:-
1. MSME LOAN/ MSME Loan-8
2. Indusind bank- 17
3. OLX- 22.
4.ICICI BANK Home Loan/ ICICI-Bank-HomeLoan/ICICIBank-HomeLoan/ ICICI Bank-hl/ ICICI -Bank-15
5. Amazon Sale- 14
6.Make/ Make My Trip/ Makemytrip- 8
7. IDFC First Bank/IDFC-Bank/ IDFCCreditCard/IDFC Credit Card/IDFC Bank-CC/IDFC First_Bank- 13.
8. Standard Chartered Bank/Standard_Ch/Standard/- 11
9. Club MahindraHolidaysCLUB MAHINDRA/ Club Mahindra/ CLUB_Mahindra_Holidays/ Club_Mahindra/Club Mahindra_Holidays- 13
10 Misc- 13.

From the above it will be seen that the spammers are using/changing sender ID/ title/ headers to avoid filters.
How to fight Spammers?