The settings for your mailserver are provided in your 'New Account Information' email.
The SMTP settings for mail applications are typically;
Account type; POP/IMAP
Incoming Mail Server; mail.yourdomain.com
User Name; The full email address for the account
Password; your email password
Outgoing Mail Server; mail.yourdomain.com
Note; For outgoing mail turn on Password Authentication and enter your user name and password, additionally some isp's are blocking port 25 in an effort to reduce spam, if you are unable to send/receive email you can also try using alternate ports (25, 465, 587).
Webmail; Access webmail for your email account by going to webmail.yourdomain.com (without www.), enter your full email address as the username, and the password as specified in your hosting control panel.
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