Email programs need you to set up two sections. One is "Incoming" and the other is "Outgoing"

Username: is your full email address (you@yourdomain.com)

Password: the password given to you to use with your email address

Incoming Mail Server

mail.interpool-hosting.ca or just your hosted domain name will work
IMAP Port is 993
POP3 Port (recommended) is 995

Outgoing Mail Server

mail.interpool-hosting.ca or just your hosted domain name will work
SMTP Port is 465

IMAP, POP3 and SMTP require authentication.