![]() ![]() Step #6: The recipient's SMTP server scans the incoming message. This isn't usually done directly, though instead, the message is routed along a series of unrelated SMTP servers until it arrives at its destination. Step #5: Now that the SMTP server has the recipient's IP address, it can connect to its SMTP server. By knowing this information, an outgoing mail server can perform its work more efficiently. The sender's SMTP server cannot route an email properly with a domain name alone an IP address is a unique number that is assigned to every computer that is connected to the Internet. The DNS takes the recipient's email domain name and translates it into an IP address. Step #4: In order to find the recipient's server, the sender's SMTP server has to communicate with the DNS, or Domain Name Server. If the domain is different, though, the SMTP server will have to communicate with the other domain's server. If the domain name is the same as the sender's, the message is routed directly over to the domain's POP3 or IMAP server - no routing between servers is needed. Step #3: The SMTP server processes the recipient's email address - especially its domain. Step #2: Your email client communicates with the SMTP server, giving it your email address, the recipient's email address, the message body and any attachments. This server can be named many things a standard example would be. Step #1: After composing a message and hitting send, your email client - whether it's Outlook Express or Gmail - connects to your domain's SMTP server. The basic steps of this process are outlined below. ![]() Now that you know the basics about incoming and outgoing mail servers, it will be easier to understand the role that they play in the emailing process. It is used to retrieve e-mail messages from a mail server over a TCP/IP connection. IMAP,servers always store copies of messages on server. IMAP, or Internet Message Access Protocol. When you download e-mails to your e-mail program, the program will connect to a server on the net that is known as a POP3 server. POP3 servers are known for storing sent and received messages on PCs' local hard drives. Incoming mail servers come in two main varieties. This protocol is used when e-mails are delivered from clients to servers and vice versa. When you press the "Send" button in your e-mail program, the program will connect to a server on the network/ Internet that is called an SMTP server. SMTP, or Simple Mail Transfer Protocol, servers. Mail servers can be broken down into two main categories: outgoing mail servers and incoming mail servers.It receive e-mails from client computers and deliver them to other mail servers.A mail server or e-mail server is a server that handles and delivers e-mail over a network, usually over the Internet.In this article, we will cover how to setup mail server on Ubuntu using postfix, dovecot and squirrelmail. 3.4 Installing and configuring squirrelmail.2.1 Check your current Ubuntu version & Upgrade. ![]()
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