In addition, you'll want to create a remote host record that points to the same IP address for the external router port. To do so, create an MX record with the @ record for host; that record has to point to remote.yourcompanyname.com (or .net. .org, or whatever the case may be). Finally, for autodiscovery to work for Outlook 2007 and 2010 clients, create a SRV record for the _autodiscover service that points back through port 443 to remote.yourcompanyname.com using the _tcp protocol.
Microsoft Small Business Server tip 4: Configuring a smart host. This is essential -- if you don't configure a smart host, your email may not be accepted by other domains. In many cases, you might try and set up a Send connector with a wild card (*) that says all email not going to an internal user will be sent to the Internet using DNS MX records. However, the problem with such a wild-card approach is that it is a hit-or-miss proposition as to whether a person will receive the email if you're using SBS behind a router that is part of a block of email addresses. Unfortunately, that router may be blocked by IP Block List providers simply because it's part of a group of IP addresses not considered valid (it happens all the time).
That's where a smart host can be helpful: Basically it's a go-between server that takes your email and sends it out from a different spot. You can check with your Internet service provider to see if it offers a smart host for you to use. If not, you might try Socket Labs, which offers free smart host support for a small number of messages per month that you can use for testing; you can then subscribe to a plan for your actual volume of email each month.
Microsoft Small Business Server tip 5: Understanding where SBS and Exchange capabilities differ. The two tools are practically identical, with the same Exchange Management Console, the same Exchange Management Shell cmdlets, and nearly the same features, such as the ability to configure transport rules and mobile devices' ActiveSync policies. But there are a few exceptions. One logical feature missing in SBS is the ability to use high availability through database availability groups (DAG), a natural consequence of that fact that SBS is a single-server deployment built from the Standard flavor of Windows Server 2008 R2.
Small Business Server 2011 really impresses me with how much of Exchange it makes available to the admin. Add in SharePoint Foundation, easy-to-use tools, and remote administration features, and you have a very powerful tool for your small business.
This article, "5 tips for setting up Microsoft Small Business Server," was originally published at InfoWorld.com. Read more of J. Peter Bruzzese's Enterprise Windows blog and follow the latest developments in Windows at InfoWorld.com. For the latest business technology news, follow InfoWorld.com on Twitter.