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Ports used by Exchange Server  What TCP and UDP ports does my Exchange 2000/2003 Server use?      For purposes of configuring firewalls or for troubleshooting communications issues, it may be useful to know what TCP/UDP ports Exchange 2000 Server and Exchange 2000 Conferencing Server are using. This article is also true for Exchange Server 2003 installations. Protocol: LDAP Port (TCP/UDP): 389 (TCP) Description: Lightweight Directory Access Protocol (LDAP), used by Active Directory, Active Directory Connector, and the Microsoft Exchange Server 5.5 directory. Protocol: LDAP/SSL Port (TCP/UDP): 636 (TCP) Description: LDAP over Secure Sockets Layer (SSL). When SSL is enabled, LDAP data that is transmitted and received is encrypted. To enable SSL, you must install a Computer certificate on the domain controller or Exchange Server 5.5 computer. Protocol: LDAP Port (TCP/UDP): 379 (TCP) Description: The Site Replication Service (SRS) uses TCP port 379. Pro

Configure Exchange E-Mail Server Reverse DNS and MX Records Correctly If DNS is setup incorrectly, over time your mail server IP will be added to blacklists. Nowadays most E-Mail servers have some kind of spam protection service which in turn means that all your inbound mail will be blocked if you do happen to be listed on a spam blacklist. In this article I will describe how to correctly configure your MX and reverse DNS records for your mail server. This article is based on an Exchange 2003/2007 server but every other messaging server will follow the same principle. Assigning an IP address Starting from the bottom up the first thing you need to do is assign a static external IP address to the internal private address of your mail server. You will need to apply these rules on your firewall to port forward SMTP (port 25) and NAT an external IP address to the internal address of the server. Something that a lot of administrators forget to do or check is to set the

How to set up your Email with Mac Mail If you use a Macintosh computer, then you might use the built-in Mail program (also known as Mac Mail) to check your email.  You can also configure Mac Mail to check your email from your hosting with us so that you do not need to learn to use a new email client.  Follow the steps below to set up Mac Mail on your computer to retrieve your email from Web Hosting Hub. Step 1: First, open up your Mac Mail on your computer, and you will get a screen like the one below.  Fill out the requested information and click Continue.  For the password field, make sure that you use the password for your email address and not the password for your cPanel. Step 2: In this next screen you will tell Mac Mail how to get your email from our server.

550 Access denied - Invalid HELO name Our Systems Team has begun implementing the requirement of SMTP authentication on our servers that may affect customers using an email client such as Thunderbird, Outlook or Mac Mail. If you are receiving "550 Access denied - Invalid HELO name" (or a similar error message) in your email client, please check your settings as follows: Microsoft Outlook From the Menu Bar, Click Tools then Click E-mail Accounts Select "View or change existing e-mail accounts" then Click "Next" Select your Email account then Click "Change" Click "More settings" Select "Outgoing Server" tab Select the box beside "My outgoing server (SMTP) requires authentication" Select "Use same settings as my incoming email serv

What is system administrator ?            A system administrator , IT systems administrator , systems administrator is a person employed to maintain and operate a computer system and/or network.         The duties of a system administrator are wide-ranging, and vary widely from one organization to another. Sysadmins are usually charged with installing, supporting and maintaining servers or other computer systems, and planning for and responding to service outages and other problems. Other duties may include scripting or light programming , project management for systems-related projects, supervising or training computer operators, and being the consultant for computer problems beyond the knowledge of technical support staff. To perform his or her job well, a system administrator must demonstrate a blend of technical skills and responsibility. System Administrator Fields A database administrator (DBA) maintains a database system, and is resp