What is Greylisting?

Greylisting (or graylisting) is a method of defending e-mail users against spam. A mail transfer agent (MTA) using greylisting will "temporarily reject" any email from a sender it does not recognize. If the mail is legitimate, the originating server will, after a delay, try again and if sufficient time has elapsed, the email will be accepted. If the mail is from a spammer it will probably not be retried since a spammer goes through thousands of email addresses and typically cannot afford the time delay to retry.

By default, Greylisting is enabled on our mail server.

Esta resposta foi útil?

 Imprimir este Artigo

Leia também

How to setup email with Outlook 2007?

Configuring your email client: Outlook 2007 Open Outlook 2007. Click...

How do I send email from ASP using SMTP Authentication in ASP.NET?

Here is the code sample :...

How do I keep a copy of emails on the server with Outlook?

Open Outlook interface, and click on "Tools -> E-mail Accounts". Select "View or change...

What is SPF record and How to enable it?

  SPF provides a way for a domain to tell the world that mail "from" that domain should...

How do I setup Outlook Express

Please note, replace yourdomain.com with your actual domain name. 1. Open Express. 2....