Drop your pictures to photos folder
#Configuring email
This gallery uses mail to send emails. You should configure it for your system, here is example for yum based systems:
yum install mailx
vi /etc/mail.rc
set smtp=smtps://smtp.gmail.com:465
set smtp-auth=login
set smtp-auth-user=mail@gmail.com
set smtp-auth-password=password
set ssl-verify=ignore
set nss-config-dir=/etc/pki/nssdb/