1) Prerequisites:


  • Domain name

  • Approval from DE Team


2) Steps:


  1. Login to mmail.netcore.co.in from backend 

  2. Then run the below sudo command

sudo /usr/local/bin/vib /net/bin/lists/allowed_spf_domains.txt

vib /usr/local/bin/vib /net/bin/lists/allowed_spf_domains.txt (If you access mmail from Port)



  1. Enter E

  2. Press Shift+G to come to the end of the sheet.

  3. Press ?domain name and Press Enter to see if it is added in this List

  4. If the domain is not present in the list then press i on keyboard and input the domain at the end that needs to be bypassed

  5. Then Enter Esc :wq(To Save and Exit)

  1. Then run the below command 2 times

                     i) redis-cli get  spff_domainname

                     ii) redis-cli del  spff_domainname


Replace the domain name with the proper domain