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.

Was this answer helpful?

 Print this Article

Also Read

General SeekDotNet Mail Server Information

...

I try to send and email throught Outlook but i got the error message "RELAY not allowed" why?

You have to enabled SMTP Authentication **Important - Always use this format username@domain.com...

I could not open email using Outlook or any Mail Client

First, please make sure that your email account is created on our server. You can check this by...

Instructions for requesting SBC Port 25 Filter Removal

1. Visit the following web site : http://help.sbcglobal.net/servabuse.php 2. You may be prompted...

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...