Brien Posey

Solution Search:

There are a few preventative measures you can take to reduce the chances that your e-mail server will end up on a blacklist.

1. Run antispyware software

First, run a good antispyware application and desktop firewall on all computers in your network... More...

Apr 20, 2006

How do you get yourself taken off of a blacklist? Unfortunately, there is no easy solution, because there are a number of antispam companies that maintain independent blacklists.

If many of the dynamic IP addresses your ISP assigns have been... More...

Apr 20, 2006

If your Exchange Server is configured to act as an open relay, it means that spammers can pass spam through your mail server in route to its final destination. All spam that passes through your mail server will appear to recipients to have come from... More...

Apr 20, 2006

The most common way of configuring Exchange Server to receive SMTP email is to set up an MX record for the company's domain that points to the company's public IP address. Usually, a firewall is then configured to route inbound SMTP traffic to the... More...

Nov 7, 2006

Publicly traded companies and government agencies sometimes prohibit certain employees or departments from communicating with each other -- either because of federal regulations or to avoid any perception of impropriety, corruption or bias... More...

Nov 15, 2006

Because the Exchange Server 2007 architecture differs so greatly from the Exchange Server 2003 architecture, It's important to familiarize yourself with the changes prior to deploying Exchange Server 2007.

The transition to 64-bit hardware

... More...

Feb 8, 2007

Email servers are under constant attack from a variety of sources, so it's important to be proactive about email security. One way of doing so is to enable protocol logging for Exchange Server.

Protocol logging lets you see the commands that clients... More...

Nov 29, 2006

There are potential pitfalls you can run into when moving mobile device user mailboxes from Exchange 2003 to Exchange 2007. Find out how to avoid them and discover a few Exchange Management Shell commands that simplify ActiveSync mailbox... More...

Oct 11, 2007
In Exchange Server 2007 and Outlook 2007, Microsoft has completely redesigned calendaring and scheduling features to make them more efficient, practical and user-friendly. In this tip, I discuss these new features and how they can be used to... More...
Aug 2, 2007
Outlook Web Access (OWA) and Exchange ActiveSync email traffic encryption is not enabled by default. It requires an SSL security certificate on your OWA server, which is not included natively in Microsoft Exchange. In this tip, I explain step-by-step... More...
Sep 13, 2007

Microsoft Outlook search folders simplify email management, because they let users sort messages with customized mailbox search queries. For example, a user could create a search folder to organize messages with attachments, or email from a... More...

Oct 30, 2007

Exchange Server's out-of-office (OOF) auto-reply feature has hardly changed over the years. But in Exchange Server 2007, Microsoft has added new functionality to the Out of Office Assistant that improves usability and security and helps prevent... More...

Nov 20, 2007
Microsoft's Internet Security and Acceleration (ISA) Server 2006 is a firewall solution that augments Exchange 2003 and Exchange 2007. Because ISA Server is an Exchange-aware solution, it can be used as an application-level firewall. It is... More...
Mar 6, 2008
Contrary to what some administrators believe, you don't have to delete your Exchange Server 2003 mailboxes and start from scratch on Exchange Server 2007. Once you've migrated your resource mailboxes from Exchange 2003 to Exchange 2007, you can... More...
Mar 14, 2008
Microsoft Exchange Server 2007 originally lacked several public folder management features, such as the ability to reliably manage public folder replicas. Installing Exchange Server 2007 Service Pack 1 (SP1) enables this and other public... More...
Feb 27, 2008
When users are close to hitting their mailbox quotas, they often avoiding deleting email by shuffling messages into Microsoft Outlook .PST files on local or network drives. This can cause unintended long-term consequences, including data loss... More...
Jan 31, 2008
Hosting an Exchange server through an ISP's dynamic IP address is sometimes the most practical approach for small IT shops. But this can create spam blacklisting issues and prevent email delivery to some recipients. One solution to this problem... More...
Mar 11, 2008

When migrating to Exchange Server 2007 from previous versions of Exchange, there's more to the installation process than a simple upgrade. Server roles play a larger part in Exchange Server 2007, and the Exchange 2007 installation process varies... More...
Mar 14, 2008
Microsoft Direct Push allows users to synchronize their mobile devices with Exchange 2003 or Exchange 2007 mailboxes. This tip focuses on Direct Push use with Exchange Server 2007, and explains how to adjust firewall session timeout periods to... More...
Feb 7, 2008
Like any version upgrade, Microsoft Outlook 2007 included features that either didn't exist in the previous version or have been improved. One such feature is Outlook 2007's new search function. Microsoft Outlook 2003 had built-in search... More...
Jun 17, 2008
Virtualization technology promises to alleviate overloaded servers and power supplies. But there are still no documented best practices for successfully virtualizing an Exchange server. In this tip, learn about the steps taken by one pioneer... More...
Aug 13, 2008
In this tip, Microsoft Exchange expert Brien Posey explains the Set command's role in the Exchange Management Shell (EMS), and how to use it to configure an Exchange 2007 mailbox to block specific senders.

Using the Exchange Management Shell is... More...

May 28, 2008
Whether or not you're using Exchange ActiveSync with a network address translation (NAT) firewall, ActiveSync problems occur in organizations that don't utilize a dedicated front-end Exchange server. Fortunately, some workarounds are available... More...
May 29, 2008
Microsoft Research
Public Folders in Exchange Server 2010: What You Should Know by Global Knowledge
In the early days of the beta version of what became known as Exchange 2007, the internet was littered with rumors and speculation about the demise of Exchange Public Folders. In this white paper we will examine Exchange...
Messaging Whitepapers
Public Folders in Exchange Server 2010: What You Should Know by Global Knowledge
about the demise of Exchange Public Folders. In this white paper we will examine Exchange Public Folders and consider where they fit in our plans for a messaging infrastructure.

In the early days of the beta version of what became known as Exchange 2007, the internet was...
The Case for Outbound Content Management - An Osterman Research White Paper by EdgeWave
to mitigate the risks of sending sensitive, confidential or inappropriate content out of an organization.

While extraordinarily valuable, email, instant messaging, text messaging, social networking, and other tools pose enormous risk if they are not monitored or managed...
Dell™ PowerEdge™ R720xd: A Study in Datacenter Footprint Reduction for Exchange Server 2010 Deployments by Dell and Microsoft

This white paper examines the newest server enhancements designed to meet the growing messaging requirements of today's users. Learn about their key characteristics and obtain detailed information...