[Koha] Error while configuring the email facility

[shankar reddy Kolle]

Dear sir,

We have installed Koha using package method in ubuntu 16.04 and while
configaring for the email facility, the following error is showing

root at prdmcl:/etc/koha# cat /etc/ssl/certs/Equifax_Secure_CA.pem >>
/etc/postfix/cacert.pem
cat: /etc/ssl/certs/Equifax_Secure_CA.pem: No such file or directory

can anyone help to solve the problem. Please

Thanking you
-- 
Best regards
Dr. Shankar Reddy Kolle
Deputy Librarian
Prof. Ram Dayal Munda Central Library
Indira Gandhi National Tribal University,
Lalpur,  Amarkantak, Anuppur Dist, Madhya Pradesh -484887, India
Phone No 09742749018