If anyone gets error 'No releases available for package "pear.php.net/PEAR"' when installing pear and mail by following steps given on the below link :
The solution in these cases are to follow the following steps from the Linux terminal SSH client:
1) Create a file called .bash_profile in root of your account via file manager.
2) Add the below line
on the first line in the file and save it.
3) Now, logout from shell (if you have already logged into the SSH) and login again, the .bash_profile is read once when first logging in.
4) Login as the customer with your SSH user on ssh.servage.net host and follow the directions in the helpdesk article (https://helpdesk.servage.net/065289--Install-Pear-and-Mail) and the install should now work correctly.