Yes, by using the webmail service.
- for PLESK visit http://webmail.yourdomain.ext
- for CPanel visit http://www.yourdomain.ext/webmail
- for Cobalt visit http://www.yourdomain.ext/openwebmail
- for Ensim visit http://www.yourdomain.ext/squirrelmail
- for DotNetPanel visit http://www.yourdomain.ext:9998
- for DC Hosting visit https://webmail.secure-web-sites.com