Hello I have tried these command but I am not able to send mail please help me out..
1) Install sendmail
Sendmail might already be installed, but just in case, enter this into the server terminal:
sudo apt-get install sendmail
2) Configure sendmail
Enter the following command into the terminal and type "Y" for each question it asks:
sudo sendmailconfig
3) Edit hosts file
Time to edit your server's hosts file, access it by entering the following command into the terminal:
sudo vim /etc/hosts
Add the following line to the top of the file and save it:
127.0.0.1 localhost localhost.localdomain your_domain_name_here.com
Comment out any duplicate lines that already existed.
4) Restart apache Let's restart your server just for good measure. At this point emails sent via PHP's mail() function should be sending successfully and without much delay.
sudo service apache2 restart
I didn't understand the 3rd step because I am working on localhost so how I can add domain name here..
Any help will be appreciable