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.

¿Fue útil la respuesta?

 Imprimir éste Artículo

Leer también

What do you mean by Catch All Email?

In short, the catch-all email function allows you to receive all incoming email that is addressed...

How are the email accounts accessed?

...

How to setup email with Outlook 2007?

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

I got Error 554 when send emails from Outlook

How to fix the problem: In Outlook, go to "Tools" and select "Email Accounts". Make sure "View...

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...