Understanding Mail Servers, How They Work

A server is a computer that handles emails or electronic mails from one computer (mailbox) to another. The server acts like a virtual post office that deals with all incoming and outgoing emails. All kinds of business web hosting offer email services. All servers operate on the same the same lines, and handle mails for more people then you can possibly imagine, and are also used for sending and receiving emails across the other network. That is to say one network can send and receive emails from other server as well.

All Web Host servers, especially business hosting servers used by companies have mail servers which work along the same lines. With a little help, understanding these mail servers is easy. Each company’s or client’s presence on web is identified by specific ISPs which are also known as the Internet Service Providers. These ISPs usually have their own mail servers. For everyone else, there is a sort of generic system which works on somewhat same guidelines.

Receiving and sending emails is a simple process but how does it really work? If and when you send out an email, for example in cheap website hosting or any other for that matter, to somebody who is one the same server as you, your mail server sends the mail for you. And that is how the client, indirectly, receives the email sent by you. If and when you send out emails to somebody who uses a different mail server than yourself even then the procedure is almost the same. The email you send out goes first to your server and then from there to the mail server of the person to whom you sent the email in the first place. It is his email server which then sends the email to the original person to whom the email was originally directed. That is say your server does the job for you when it comes to emailing.

You can use different applications to send emails. All the best web hosting services offer email interaction via applications like Microsoft Outlook or Eudora with the help of which clients send each other emails. These applications then send an email to the server. Mail servers use varying systems to send the emails, like for example, ESMTP or SMPT (Simple Mail Transfer Protocol). These are some of the applications used by servers to send and receive emails to each other. In the simplest words, that is how almost all mail servers work.

For any webmaster or internet user, emailing is part of the regular web activity especially if you are on cheap hosting. For any email address, spam protection is important. Some mail servers have a notoriously lax policy regarding spammers while others are zero tolerance policy.