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