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Working with SMTP
Author: Simon Butler, Exchange MVP, MCSE
Last Page Review: 01/06/2007

SMTP is core to the operation of Exchange 200x. This section brings together our articles on working SMTP. While directed at Exchange server, many of the themes mentioned in these articles will apply to any SMTP email server being used on the Internet.

Configuring SMTP

Configuring an SMTP Connector
An SMTP Connector allows you to use another machine to route your outbound email through when you are unable to deliver your email directly - either because the sender or your ISP doesn't allow your server to connect.

DNS Configuration
How you should configure DNS, MX records, reverse DNS and what the server announces itself as to ensure that your email has the best chance of being delivered and not rejected by anti-spam measures.

Filter Out Mail to Non-Existent Users
How to stop receiving email for addresses that don't exist on your network

Basic Gateway Server
Build an email gateway server to put in your DMZ, that works just like Edge Services on Exchange 2007, but for any version of Exchange. Cheaper too.

NEW - SMTP Diagnostics
Use tools available in Windows and on the Internet to see why your email is not being delivered.

Securing SMTP

Are you an Open Relay?
How to check whether your Exchange server is an open relay, and what to change to secure it.

Securing Users When Relaying SMTP Email
How to tighten the security when you are allowing users to relay through your server, and trying to avoid "Authenticated User" relaying.

Restrict Users from Sending and Receiving Internet Email
A quick guide on allowing users to send and receive email internally, but unable to send or receive email to the Internet.

Cleaning up after an NDR attack or open relay
How to clear the queues caused by attempts to use your server to send spam

Telnet Test
How to carry out a manual telnet test to verify that SMTP is working correctly

Using SMTP To Work More Effectively

Using Exchange to Provide a Backup MX Server for Another Domain
How to configure Exchange to queue email when another server is down.

Sharing a Single IP Address with another SMTP Server
If you have another SMTP server on your network, how to use Exchange to relay email to it over the single connection.

Sponsored Links

Last Page Update:
01/06/2007

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