Make your email server accessible on the Internet

Many friends may know that,Genie tribeOn the day that the trial version was launched, many people failed to register because of frequent errors in the email verification process (SINA and other email service providers could not allow me to use its services so frequently for free. This makes me feel that it is necessary to set up an email server.

However, this does not seem to be an easy task. First, we have to solve the problem of setup. I found it onlineLinuxIt may be easier to solve this problem on the platform,WindowsAlthough there are many software available under the platformWinmail,Amail,UmailAnd so on, but none of them are charged. In addition, there are manyWindows2003Built-inPOP3Services andSMTPService. So naturally, I made a choice: use it.Windows2003The built-in components are used for this deployment.

So the following is how to deploy it ?" This is a problem.

One search on the Internet,Window2003 POP3The mail service is almost the same. It is used to teach you how to install it first.IIS,SMTP,POP3Service, and then howPOP3Building a domain in the service and then building a mailbox seems to be a success. It is true that only a simple email service in a LAN may work. However, if you wantInternetIt's far from that simple to interact with major email service providers.

Since simple deploymentPOP3I will not repeat so many email service tutorials here. Next we will focus on how to make your email serverInternetThe most popular!

First, you have to have a fixedIPAddress, a fixed domain name is successfully resolved to yourIPAddress. You can alsoIPIn the LAN of an address, address translation is performed in the firewall. I think there will certainly be many tutorials on the Internet. I will not repeat them here. The key is that you must make an email at your domain name service provider.MXIndicatesDNSResolution Server, when you receive an email with the suffix of your domain name, please set the correspondingIPAddress forwarding. About how to doMXRecord, each domain name service provider may provide different methods. Each person should consult the customer service personnel of your domain name service provider based on their own situations, or ask them to work on behalf of them. After this step is completed, theoretically, if all the preparations have been completed and you have all the prerequisites, your email server will be available on the Internet. The rest is how to use it.

It may be worth noting thatPOP3When you create a new domain in the service, the domain name must be consistent with your domain name on the Internet (think about it, even if you don't say it, everyone should understand, huh, huh, but this is indeed critical ).

Yes. Now your email server is accessible on the Internet. However, you may have some minor issues on your own email server.

First, in yourIISDefaultSMTPIn the "access" tab of the Virtual Server property, open the "relay" button and set your "relay restrictions" list. If you select "only the following list", you must enter in the list which other email servers you want your email server to send emails. Otherwise, your email server will not be able to send any emails. If you select "only the following list", your email server can send emails to any other email server except the list. If the list does not contain any data at this time, you can send emails to any other email servers without any restrictions.

Second, if you have a firewall, make sure yourPOP3Service port (110) AndSMTPService port (25) Is open. Otherwise, you may find that all your emails cannot be sent or received!

If there are no mistakes in all links at this time, congratulations! Your email server has been fully set up! The other question is, how do I send and receive emails?

This is just a basic mail service. To use this service, a client with good user experience is required. All of my friends thought of it,OutlookBai! Yes.

The configuration method is inOutlookThe configuration method is similar. Remember thatPOP3The server address is alsoSMTPIn the server address, you enteredDNSThe parsing server has doneMXThe domain name recorded.

NowOutlookNewer versions use a more intelligent method during configuration, maybe because your email server is not well-known on the internet, therefore, they cannot find enough useful information intelligently. At this time, please try manual configuration. I believe you can succeed!

Finally, based on the previous success, if you are a Program expert, you can use this email service if you are interested, develop a complete, simple and easy-to-use email system. In fact, as we have already mentioned above, there are a lot of mail service software built on this basis. Why do they make money? Is it because everyone is confused that it is difficult to successfully deploy on their own? Well, now, I know there are no shortage of experts in the garden, so they can compete for their business.