| Mr. Smith just set up his own local SMTP server on | | | | Here is a screenshot of how you can do it in your |
| his laptop. He is happy he could control his business | | | | SMTP Server software: |
| even at a distance and he is going to go abroad. Now | | | | IP range |
| Mr. Smith will be disappointed - he will not be able to | | | | IP range will help you to open or deny access to |
| send emails through his new, shiny SMTP server. | | | | your server from the listed IP's. Your server uses |
| Why? When you are sending your email, your e-mail | | | | filtering of the incoming connection's IP addresses. |
| client connects to the server and sends your | | | | With the help of IP range list you can block someone |
| message to it. After it accepts your message for | | | | access to your server. Also, you may open the ability |
| delivery, it will store it in its local queue. Then it starts | | | | to use your SMTP server with IP addresses, included |
| emailing. | | | | in the range. This is also a very good security option |
| The problem is that your own local SMTP goes | | | | to avert spammers from using your server as an |
| through various stages of authentication when it is | | | | open relay. |
| sending your message. Testing your IP is one of the | | | | Here is how you setup your IP range list in our SMTP |
| most important phases, and most of your emails will | | | | server software. Please make sure, you exclude your |
| be rejected, if you have dynamic IP. | | | | router from the list of allowed IP addresses, because |
| So what Mr. Smith has to do, when he needs to | | | | otherwise, any relay from the outside network will |
| setup SMTP server in a corporate environment? It is | | | | go through without asking for user name and |
| hard to believe, but he has a simple solution. He does | | | | password. |
| not need to carry his SMTP server on his laptop | | | | Your local domain |
| every day. It will be better to install it on a corporate | | | | Setting up your local domain gives you and your |
| server or a home computer with static IP that is | | | | users ability to receive and store messages with your |
| constantly connected to the Internet. | | | | SMTP server, it will also allow you to authenticate all |
| After the installation Mr. Smith must take the | | | | your users with user name and password. If you |
| following steps: | | | | already have your own domain - add it here. If you |
| * Configure his SMTP server and | | | | need your domain just for authentication, you may |
| * Configure his email client | | | | specify any domain name you like (for example |
| Let's discuss them in details. | | | | myowndomain.com, even if it's not a real domain |
| If you only want to setup your SMTP server as an | | | | name). However if you need to let your users to |
| outgoing relay, you must do the following: | | | | hold their accounts in your server, you will also need |
| * Configure forward & reverse DNS resolution | | | | to make sure your domain name is registered and |
| * Check black - lists | | | | has a valid MX record. |
| * Configure SPF | | | | Your domain users |
| * Configure Domain Keys | | | | After that, add your users and give them their |
| However if you need to setup your server in a | | | | passwords. You can create one or more users - |
| corporate environment, and you want it to store and | | | | number of users in a domain is unlimited. |
| handle your email for you, you have to take a few | | | | When you do this, all legal users will have the ability |
| additional steps:: | | | | to send, authenticate and receive emails with your |
| * Setup SMTP ports | | | | SMTP server all over the world. It is very important |
| * Configure IP range | | | | to set up a secured password for each of your |
| * Configure your local domain | | | | users and for your anti-spam protection. |
| * Setup your domain users | | | | Your e-mail client |
| * Configure your email client | | | | Now you are ready to send your messages with |
| SMTP ports | | | | your SMTP all over the world. You just have to |
| Opening additional SMTP ports is the first step of the | | | | configure your email client software. After you |
| Server configuration. As you know, port 25 is | | | | create new email account in your Windows Mail or |
| standard for SMTP servers. Internet providers often | | | | Outlook, point your server's static IP as a host name. |
| block it when they are fighting against spam. It is | | | | If you already have your own domain, you can |
| necessary to open some other ports, such as 2525, | | | | specify that as well. |
| 587 and 465 ports. Since most large companies use | | | | After this, enter your username (it is your email |
| it, it has become a "de facto", not a defined, | | | | address) and password you've just set up in your |
| standard. What is most important to you is the fact | | | | SMTP server. Now you are ready to send e-mails |
| that no Internet provider is blocking these ports, so | | | | with your corporate SMTP Server from all over the |
| you will be able to connect to your SMTP server | | | | world. |
| from anywhere in the world. | | | | |