Check your spam folder in webmail
You should periodically check your spam folders in webmail.
1) Login to webmail
2) Click on the SPAM folder on the left
3) Identify any e-mails you think are legitimate.
If you click on the check-box on the left and then click on WHITELIST, future e-mails from this user should go to your inbox.
If you click on the check-box and then click MOVE TO and then INBOX, it will go back to your inbox and you can view the e-mail.