Sendmail not found in Ubuntu. Send mail is slow

Unable to send mail through Lamp server using PHP. Most likely cause is that you do not have sendmail installed.

In the apache error log you might have the following error

sh: /usr/sbin/sendmail: not found

 

You need to Install sendmail. Enter the following command in the terminal:

sudo apt-get install sendmail

 

To restart, stop, start sendmail

/etd/init.d/sendmail restart
/etd/init.d/sendmail stop
/etd/init.d/sendmail start