A second priority MX record allows the Webservio Mail Bagging system to work. At times, spammers use different MX records randomly to spam. If your mail server is receiving large amounts of spam, we recommend our Email Defense solution which is an anti-spam/virus filtering system combined with the Mail Bagging solution. To learn more about the Email Sheltering services and plans offered please refer to the following web pages:
http://www.webservio.net/hosting/email/anti_spam/index.html
http://www.webservio.com/services/emailsecurity/emailsecurity.html