Knowledgebase : BackupMX
   

PROBLEM: What is Backup MX? SOLUTION: Backup MX [http://www.prolateral.com/backupmx] (also known as SMTP Backup or Secondary SMTP) is an email service that sits at a lower priority then your primary mail server. Backup MX is essentially a SMTP Serve...
PROBLEM: How do I use BackupMX? How do I setup BackupMX? SOLUTION: To use the Backup MX [http://www.prolateral.com/backupmx] service you need to make a simple change to your DNS and add the BackupMX servers at a lower priority (thats a higher MX numb...
PROBLEM: Does BackupMX have spam filtering? SOLUTION: The answer to that question is both yes and no. Backup MX [http://www.prolateral.com/backupmx] incorporates greylisting but not full spam protection. For full spam protection please see the section...
PROBLEM: What is Greylisting? SOLUTION: Greylisting is a method of blocking significant amounts of spam at the mailserver level, but without resorting to heavyweight statistical analysis or other heuristical approaches. Greylisting relies on the fac...