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Improve Exchange 2003 Internet connectivity, mail flow and performance
Learn how to configure SMTP virtual servers, connectors, bridgeheads and routing groups to improve Exchange 2003 Web connectivity and email performance. Tutorial
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A primer on SMTP and ESMTP servers and commands
Learn about Simple Message Transfer Protocol (SMTP) and Extended SMTP (ESMTP), common commands and how each protocol works. Tutorial
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Part 1: SMTP commands and server response codes
Learn how several common SMTP commands work and the meaning of SMTP numeric response codes. Tutorial
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Part 4: Security-related and Exchange-specific ESMTP commands
Discover several security-related and Exchange-specific ESMTP commands that offer enhanced email delivery notification, host authentication and encryption. Tutorial
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Part 3: How Extended SMTP works and common ESMTP commands
Learn how Extended STMP (ESMTP) works and discover the functionality of several common ESMTP commands. Tutorial
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Part 2: How to perform a Telnet SMTP session for Exchange Server 2003
Get a demonstration of how to perform an SMTP session via Telnet to send email messages in Exchange Server 2003. Tutorial
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Step 3: Managing Exchange 2003 NNTP newsfeeds and expiration policies
Learn how to set up Exchange 2003 NNTP newsfeed settings and subscriptions and security features like password protection, user access and firewalls. Step-by-Step Guide
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Step 2: Configuring and replicating Exchange Server NNTP newsfeeds
Learn how to configure, support, and replicate newsfeeds on an Exchange 2003 NNTP virtual server using master, subordinate, and peer servers. Step-by-Step Guide
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Step 1: Creating Exchange Server NNTP newsgroup hierarchies
Learn how to set up newsgroup hierarchies, configure the Network News Transfer Protocol and create NNTP virtual directories in Exchange Server 2003. Step-by-Step Guide
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How to use SMTP queues to troubleshoot mail flow
Find out how you can use SMTP queues to diagnose and troubleshoot Exchange Server mail flow and email performance issues. Tutorial
- See More: Essential Knowledge on Email Protocols
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Understanding email delivery
To understand the process of email delivery, read the following tip that explains email settings, SMTP communication, and the standard email infrastructure. Article | 23 Mar 2006
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Worst Practice #3: Use identical configuration for all Exchange Server roles
Checklist: Top 10 Exchange performance worst practices, worst practice #3 Article | 06 Jun 2005
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Step 8: Establish controls for Internet SMTP traffic
Step-by-Step Guide: E-mail compliance to do list, part 8 Article | 10 Apr 2005
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Step 2: Implement DHCP services
Step-by-Step Guide: How to set up a VPN, part 2 Article | 20 Mar 2005
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Microsoft to delay SMTP relay software
The software company will not release Exchange Edge Services in 2005 as previously planned. Instead, sources say, the technology will be folded into the next version of Exchange Server, where it will be tasked with more than fighting spam. Article | 16 Dec 2004
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Ask Microsoft: SMTP addresses, auto-backup for Outlook
A Microsoft information worker executive answers user questions about gleaning "real" e-mail address information and the Personal Folders Backup Add-In. Article | 04 Nov 2004
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Cross-Forest SMTP Authentication
The following is tip #5 from '8 Exchange 2003 security tips in 8 minutes.' Article | 30 Sep 2004
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Fix issued for SMTP bug in Exchange 2003
Microsoft has issued a fix for users of Exchange Server 2003 who may have problems performing DNS lookups via SMTP. Article | 16 Sep 2004
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Sender ID not DOA, standards body says
The e-mail identification protocol is alive and well, according to the Internet Engineering Task Force. And some predict that the recent flap over Sender ID's method of authentication will be worked out in a compromise. Article | 16 Sep 2004
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The large file challenge
E-mail attachment caching must be included in digital asset management to enable more cost effective, secure and integrated delivery of large files, according to the CTO of advertising giant Ogilvy & Mather. Article | 09 Sep 2004
- See More: News on Email Protocols
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Free Microsoft tool accesses Exchange, Outlook MAPI stores
What started as one Microsoft engineer tinkering with MAPI became a full-blown tool. See how MCFMAPI can access stores via a graphical user interface, helping you solve MAPI problems. Tip
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Exposing SMTP and IMAP’s security vulnerabilities in Exchange Server
Even though SMTP and IMAP have built-in features to protect Exchange’s external mail transmissions, both protocols are still susceptible to security vulnerabilities. See how easily both can be compromised. Tip
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Securing Exchange Server communications via SMTP and IMAP
IMAP and SMTP have built-in security features to protect Exchange Server's external mail transmissions. Do these legacy protocols offer enough protection? Tip
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SMTP greylisting problem on Exchange Server 2003 SP2
A greylisting problem on Exchange Server 2003 SP2 causes sent email to stack up in the SMTP queue and not get delivered. Discover three workarounds that fix the issue. Tip
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Free third-party POP3 connector for Exchange Server
Exchange Server isn't really supposed to connect to an external POP3 mailbox and aggregate email from it, but enough people do it that most Exchange Server administrators have to support it. If you have no choice but to use a POP3 configuration in yo... Tip
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Changing the Exchange Server local delivery queue directory
By default, Microsoft Exchange Server creates a queue directory in \Program Files\Exchange that it uses to process SMTP email bound for local delivery. Because this queue folder is created on the same drive as Exchange Server and the operating system... Tip
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Enabling protocol logging for Exchange Server
Protocol logging lets you see the commands that clients are sending to your Exchange server. If you detect suspicious SMTP, NNTP or HTTP traffic patterns, you can take action before they become a problem. Protocol logs are also an excellent forensic ... Tip
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How and why to disable certain ESMTP verbs
Some firewalls and network devices filter out certain Extended Simple Mail Transfer Protocol (ESMTP) commands or "verbs." This can break communications between Exchange 2000, Exchange 2003, and other SMTP mail servers. Tip
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Disabling link state information for Exchange Server connectors
Link state information is used to determine whether or not email should be routed using a particular Exchange Server connector. Find out why you sometimes need to disable link state information to prevent problems with Exchange Server performance and... Tip
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Beware of firewalls that block Exchange Server's SMTP/POP3 communications
Firewalls and proxy settings that aggressively filter SMTP/POP3 traffic may unintentionally break Exchange Server functionality. Cisco's PIX firewall software and Symantec's Raptor Firewall are two common culprits. Tip
- See More: Tips on Email Protocols
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Resolving a MAPI error message in Exchange Server 2003
Find out how to resolve an error pertaining to control the number of connections per user during MAPI sessions in Exchange Server 2003. Ask the Expert
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Explaining the difference between IMAP and POP3 in Exchange Server
Take a look at what qualities IMAP and POP3 offer and the differences between each protocol in Exchange Server 2003. Ask the Expert
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Requirements for connecting mobile devices to Exchange 2003
Take a look at the different requirements for mobile devices such as an iPhone or Blackberry to connect to Exchange Server 2003. Ask the Expert
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Accessing old mail remotely with OWA
You have a few options when trying to access old email copies remotely while using OWA on Outlook 2007. Ask the Expert
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Creating an active GAL on Outlook 2003 and 2007
Find out how to configure a newly-created GAL so it's active on both Outlook 2003 and 2007, ensuring Outlook is updated when a new user is added. Ask the Expert
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POP3 email not appearing in Outlook 2007
Take a look at the steps you should take to resolve issues you may have with an additional POP3 email account not showing up in Outlook 2007. Ask the Expert
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Preventing duplicate SMTP addresses on Exchange
See our expert's advice for dealing with and removing duplicate SMTP addresses. Ask the Expert
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Email issues after configuring hosted Exchange server on laptop
Take a look at the steps you need to take in order to ensure your email is available on your Exchange server on both your laptop and desktop. Ask the Expert
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Looking for a hosted Exchange provider that allows email auditing
Get an expert's view on the hosted Exchange market. Ask the Expert
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Problems receiving email from outside a Exchange Server 2003 domain
Find out what type of setup is necessary when trying to receive emails from outside of an Exchange Server 2003 domain. Ask the Expert
- See More: Expert Advice on Email Protocols
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POP3 (Post Office Protocol 3)
POP3 (Post Office Protocol 3) is the most recent version of a standard protocol for receiving e-mail. Definition
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Automatic Private IP Addressing (APIPA)
Automatic Private IP Addressing (APIPA) is a feature of Windows-based operating systems (included in Windows 98, ME, 2000, and XP) that enables a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protoc... Definition
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IMAP (Internet Message Access Protocol)
IMAP (Internet Message Access Protocol) is a standard protocol for accessing e-mail from your local server. Definition
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MAPI (Messaging Application Program Interface)
MAPI (Messaging Application Program Interface) is a Microsoft Windows program interface that enables you to send e-mail from within a Windows application and attach the document you are working on to the e-mail note. Definition
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SMTP (Simple Mail Transfer Protocol)
SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving e-mail. Definition
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X.400
X.400 is the messaging (notably e-mail) standard specified by the ITU-TS (International Telecommunications Union - Telecommunication Standard Sector). Definition
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Free Microsoft tool accesses Exchange, Outlook MAPI stores
What started as one Microsoft engineer tinkering with MAPI became a full-blown tool. See how MCFMAPI can access stores via a graphical user interface, helping you solve MAPI problems. Tip
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Exposing SMTP and IMAP’s security vulnerabilities in Exchange Server
Even though SMTP and IMAP have built-in features to protect Exchange’s external mail transmissions, both protocols are still susceptible to security vulnerabilities. See how easily both can be compromised. Tip
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Securing Exchange Server communications via SMTP and IMAP
IMAP and SMTP have built-in security features to protect Exchange Server's external mail transmissions. Do these legacy protocols offer enough protection? Tip
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Resolving a MAPI error message in Exchange Server 2003
Find out how to resolve an error pertaining to control the number of connections per user during MAPI sessions in Exchange Server 2003. Ask the Expert
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Explaining the difference between IMAP and POP3 in Exchange Server
Take a look at what qualities IMAP and POP3 offer and the differences between each protocol in Exchange Server 2003. Ask the Expert
-
Requirements for connecting mobile devices to Exchange 2003
Take a look at the different requirements for mobile devices such as an iPhone or Blackberry to connect to Exchange Server 2003. Ask the Expert
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Accessing old mail remotely with OWA
You have a few options when trying to access old email copies remotely while using OWA on Outlook 2007. Ask the Expert
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Creating an active GAL on Outlook 2003 and 2007
Find out how to configure a newly-created GAL so it's active on both Outlook 2003 and 2007, ensuring Outlook is updated when a new user is added. Ask the Expert
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POP3 email not appearing in Outlook 2007
Take a look at the steps you should take to resolve issues you may have with an additional POP3 email account not showing up in Outlook 2007. Ask the Expert
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Preventing duplicate SMTP addresses on Exchange
See our expert's advice for dealing with and removing duplicate SMTP addresses. Ask the Expert
- See More: All on Email Protocols
About Email Protocols
Email protocols provide the "plumbing" that allows Microsoft Exchange Server to send and receive email and communicate with other servers. Whether you want set up a POP3 connector to download email from ISP accounts to Microsoft Outlook clients, understand LDAP queries between Active Directory and Exchange Server, or troubleshoot HTTP and SMTP communication problems, these tips and tutorials will teach you what you need to know about Exchange-related email protocols.