Provide mail id detail
account type Pop3 or IMAP
incoming mail server --- mail.cssinfotech.in
outgoing mail server --- mail.cssinfotech.in
username & password, tick on remember password
Now go to more setting
tick on My outgoing server
On advanced tab provide port no. detail
for pop3 110 & IMAP 143 in none encryption mode
smtp 25
then click ok button
press next button & finish button on next window.