Backup MX

Från: http://www.junkemailfilter.com/spam/free_mx_backup_service.html

Here’s how it works. Suppose your domain is ”example.com” and your MX record is ”mail.example.com”. You would add two more MX records as follows:

mail.example.com 10
mxbackup1.junkemailfilter.com 20
mxbackup2.junkemailfilter.com 30