SMTP is core to the Exchange 2003 product, used both for inter-server and internet traffic. This section covers the configuration of SMTP features and how to get them to work in the way that you need them to on your Exchange 2003 Server.
- While Exchange 2003 can send email to the internet with no additional configuration, if you want more control, and/or need to send email via your ISPs SMTP server, then you will need to use an SMTP connector.
- Give someone outside of your network an email address in your domain.
- Mainly written for SBS 2003 users, migrating to SMTP delivery can make your email handling a lot more efficient.
Anti Spam, Cleaning up after a spam attack and securing the server.
- If your server has been abused, this guide will show you how to clean up and find out what happened.
- IMF is the anti-spam filter built in to Exchange 2003 SP2.
- If you need to allow relaying through your Exchange 2003 server, then lock it down so that the facility cannot be abused.
- Dropping email for unknown users is a very effective way in reducing the amount of email your server has to process.
- An alternative to filtering email at point of delivery is to send certain addresses in to a black hole.
Relevant Blog Postings from the Sembee Blog.
- This blog article provides resolutions to the main arguments for using a POP3 connector, rather than native SMTP Delivery.
- This blog posting details the problems with SMTP virtual server configuration on Exchange 2003 and routing groups.
- This blog posting outlines some of the usernames that were tried during an authenticated user attack.
- In this blog posting, the site author shares some of his experiences with the anti-spam technique greylisting. You should also deploy the hotfix from this article: Hotfix for the Exchange 2003 Greylisting Bug
- A common request is for Backup MX Services, which your ISP may offer. This blog posting explains why they are not a good idea and an alternative.