First log onto ssh via putty.
1. Install nano on your server
sudo yum install nano
2. After successfully installing nano type the following to get csf email related details.
grep -ni email /etc/csf/csf.conf
3. Now you have to note the query number which was generated from the above query, and search the line number by issueing this command.
nano -c /etc/csf/csf.conf
4. Go to line 1017 which says LF_EMAIL_ALERT = "1" and change it to
LF_EMAIL_ALERT = "0"
5. Press the follwing to write into file
Ctrl + O
6. Exit by pressing the following.
Ctrl + X
