IsnotSpam online spam checker was created to help the user test email and newsletter content, and alert them if it is likely to trigger spam filters. It generates a spam score which tells the reputation of the user who is sending the email.
MailTester.com allows you to verify if an e-mail address is valid or not.This can help you keep your contacts database up to date.MailTester performs a series of tests (DNS lookups, SMTP checks) on an e-mail address to determineEmail Spam Testing Tools Mail Tester
The Spam Score is a number assigned to each email by applying a set of rules and it is filtered by the spam firewall. The score is established based on a number of spam filtering tests performed on each email. The higher the SpamEmail Spam Testing Tools