For some time now we have been rolling out an efficient method of spam protection for our clients called Greylisting.
How Greylisting Works
The way greylisting works like this:-
1. A user sends email
2. The users email account tries to deliver email to your mailbox
3. Your mailbox rejects the email once
4. The users email account tries again to deliver email (this is normal practice)
5. Your mailbox accepts the email and makes a note to allow any future email from this email address Read the rest of this entry »