Microsoft exchange Greylisting reject

Posted on 2008-02-07
Medium Priority
Last Modified: 2008-03-20
I am sending from Outlook Web Access
Get this error from receiving postfix server

 <noricom.no #4.0.0 smtp;450 <eivind.bustad@rema.no>: Recipient
address rejected: Greylisted, see
Reporting-MTA: dns; exchange.noricom.no

Does not exchange2003 support greylisting?
What do i have to do?

Question by:Asgeir22
LVL 15

Expert Comment

ID: 20839781
Exchange does support greylisting by default. I cant think of how you could change it so you would fail, as Exchange will autmaticly try to send the mail again.

Accepted Solution

dynamitedotorg earned 1500 total points
ID: 20840654
You don't need to do anything, that's a message caused by greylisting working correctly.

The 450 error is a temporary error (4xx is a temporary error, 5xx is a permanent error), therefore the sending mail server should retry again shortly.

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Upgrading from older Exchange server to the latest Exchange server can be tiresome, error-prone and risky, without being a seasoned exchange server administrators. It can become even problematic if you're an organization that runs on tight timeline…
Organisation is organized in a pattern to flow the day to day business, every application and system is interdepended on each other and when very important “Exchange Server downtime” happened.
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses

599 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question