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  • Blog Post: Spam email and Office 365 environment - overview

    I wanted to write a series of blog posts talking about email spam in Office 365. While majority of spam mail is blocked by the Office 365 mail security gateways, there are no perfect systems that will block 100% of spam all the time, some can still get through. In case that we do experience spam mail...
  • Blog Post: Released: PelNet

    download With the huge scale environment I currently work in my team has had some difficulty when it comes to validating customer transport changes, specifically when adding new send connectors or new smart hosts. The same goes for troubleshooting mail flow….you know…whip out good...
  • Blog Post: Data loss prevention in Exchange just got better

    With Exchange 2013, we released a new data loss prevention (DLP) capability based on deep content analysis that helps you identify, monitor, and protect sensitive information. We’re continually looking to expand our DLP capabilities, and today we’re bringing two new ones to you—Document Fingerprinting...
  • Blog Post: Extending Message Trace to 90 days in Exchange Online

    Message trace enables administrators to trace email messages as they pass through Exchange Online or Exchange Online Protection (EOP) service. It helps you determine whether a message was received, rejected, deferred, or delivered by the service. You’ve told us that you need to be able to trace messages...
  • Blog Post: In Deployment: Directory Based Edge Blocking for Exchange Online Protection

    What is Directory Based Edge Blocking? The Directory Based Edge Blocking (DBEB) feature in Exchange Online Protection (EOP) lets you reject messages for invalid recipients at the service network perimeter. DBEB lets admins add mail-enabled recipients to Azure Active Directory and block all messages...
  • Blog Post: Just what is your address?

    We're all pretty familiar with the common SMTP address - spam@make.it.go.away.com . And a lot of folks are happy with just one or two of these. But if you've migrated any users lately, setup cross-forest with MIIS, or if you've just tried to reply to someone who's “left the building”, you've  probably...
  • Blog Post: ESE Access to Exchange: Spamcops!

    It’s not easy being a spam cop. But the folks on the Forefront Online Protection for Exchange (FOPE) team love it! Their passion for being investigators and transport experts has translated into measurable impacts to help safeguard customers’ inbound, outbound and internal business mail from spam, viruses...
  • Blog Post: Speak SMTP like a native

    If you are writing an SMTP agent, you might find it instructive to learn to speak SMTP yourself, both to aid debugging and to get a feel for what is happening "under the hood" when Exchange receives a message from the internet. This is a lot easier than it might sound. Open the Run dialog box (press...
  • Blog Post: Anti-Spam Connection Filtering when installed on Hub servers and other AS configuration misunderstandings

    Recently I came across a situation where it was reported that Connection Filtering stopped working (IPs on the Blocklist and RBLs were no longer being blocked). The solution led me to write this blog to clarify some confusion about "when" connection filtering is applied and how configuration settings...
  • Blog Post: Recipient Rate Limit Increase to 10K for Office 365 and Exchange Online

    Update 2/26/2013: In response to your feedback, we have also raised the limit for Office 365 for Education plans (A2, A3, A4) to 10,000 recipients per day. In response to feedback from our customers, we have increased the recipient rate limit within Office 365 Enterprise (E1, E2, E3, E4, K1, and K2...
  • Blog Post: Overview of journaling in Exchange 2007

    Email Journaling is the ability to record all email communication in an organization. In Exchange 2003, there are three different type of journaling: Message-only journaling Bcc Journaling Envelope Journaling. Envelope Journaling is the most suitable as it records data about all recipients that a message...
  • Blog Post: Voice Mail and Discoverability with Exchange 2007 Unified Messaging

    Exchange 2007 was the first release of Exchange to include Unified Messaging (UM) and this was the first time many of our customers started considering replacing their existing voice mail systems with UM. As with any new technology, many have sent in questions or concerns regarding the legal implications...
  • Blog Post: Script to export IP Allow List for import on another Exchange 2007 server

    Recent question I heard sounded really interesting: Anyone know a way to add many addresses to the IP Allow List at one time versus one at a time? I have over 100 configured on one server that I want to add to another server. I thought about it a bit and came up with a script for it. Copy the script...
  • Blog Post: Exchange Online Protection: A Premium Protection and Policy Service for Email

    This summer, Microsoft introduced the new Office , including the new version of Exchange Server 2013 and Exchange Online, which provides businesses with robust communication and collaboration capabilities available on-premises or in the cloud. When you talk about messaging and collaboration, especially...
  • Blog Post: Playing Shell Dojo with Transport Rules

    To enforce messaging policies, organizations frequently need to inspect messages based on different properties such as sender, recipients, subject, headers and attachments, and take the necessary actions such as adding disclaimers, adding headers, adding a prefix to the message subject, setting or modifying...
  • Blog Post: Announcing the release of Exchange Server Remote Connectivity Analyzer

    Have you ever installed an Exchange server and wanted to verify your Internet facing services were setup and configured properly? Things like Exchange ActiveSync, AutoDiscover, Outlook Anywhere (RPC/HTTP), and inbound email. Sure there are cmdlets included in Exchange 2007 like test-ActivesyncConnectivity...
  • Blog Post: Microsoft IT Showcase: Microsoft Exchange Server 2007 Edge Transport and Messaging Protection

    If you want to learn how Microsoft IT used the features of Exchange 2007 Edge Transport role, check this out. Here is an official summary: In deploying the Exchange 2007 based messaging protection solution, Microsoft IT used all messaging protection features of the Edge Transport server role and Forefront...
  • Blog Post: Introducing MailTips

    Have you ever sent a really well thought out, important email, only to find out (through an automatic response) that the recipient is on vacation for two weeks? For most of us, this means either waiting two weeks for a response or emailing an alternate contact. For the recipient, it means dealing with...
  • Blog Post: Implementing TLS between two Exchange Server organizations

    We have had some requests to talk more about the process to implement TLS between two Exchange organizations. Here it is! The following walk-through should help you do this. Note that those instructions apply to Exchange Server 2000/2003. We will follow up with Exchange Server 2007 functionality at the...
  • Blog Post: Exposing SCL (Spam Confidence Level) in Outlook

    When making decisions on what SCL levels to set in the Intelligent Message Filter (IMF) configuration, it’s useful to see what SCL is stamped on particular mail. The deployment doc describes how to expose the SCL through an x-scl header when archiving messages in Chapter 6, “Storing the SCL...
  • Blog Post: IMF Archive Manager Version 2 released

    After 6 months of feedback and contributions by the folks over in the IMFAM workspace, I’m happy to announce the final release of the 2 nd IMF Archive Manager. For those that don’t know, IMFAM is a C# GUI tool released as shared source on GotDotNet that provides a view of the IMF archive directory and...
  • Blog Post: Exchange Server 2007 Active Directory Site and Connector Selection Algorithms

    When multiple paths exist to a destination, Exchange Server 2007 Routing uses deterministic algorithms to choose one of the paths. The algorithms are deterministic because one of the paths is always chosen (as long as the contributing factors do not change). This article describes the AD Site and Connector...
  • Blog Post: Advanced Exchange 2007 Transport Logs Troubleshooting using Log Parser - Part 1

    Exchange Server 2007 uses new transport logs file formats that are easy to parse with one of our favorite Swiss Army knife tools, "Log Parser".  Log Parser (also referred to as LP in the rest of this blog post) is commonly used for analyzing IIS log files or Windows Event logs. This first...
  • Blog Post: Exchange Server 2003 Service Pack 2 (SP2) anti-spam features - order of execution

    By this time, you all must be already aware of new anti-spam features provided in Exchange Server 2003 SP2. Alexander Nikolayev discusses all the anti-spam features of Exchange server 2003 SP2 in his article at: http://blogs.technet.com/exchange/archive/2005/07/18/407838.aspx These anti-spam features...
  • Blog Post: UPDATE 2: Exchange 2007 Processor and Memory Recommendations

    NOTE: This article has also been published in the official Exchange 2007 documentation. We recommend that you check the documentation for the most up-to-date version. Please see the following links: Planning Processor Configurations - http://technet.microsoft.com/en-us/library/aa998874.aspx Planning...