Frequent question: What is mail server in Linux?

What is the mail server?

An email server, or simply mail server, is an application or computer in a network whose sole purpose is to act as a virtual post office. The server stores incoming mail for distribution to local users and sends out outgoing messages.

How do I find my mail server Linux?


  1. Open a command prompt.
  2. Type dig MX and hit enter where is the domain you are trying to find out the smtp server for.

What is a UNIX mail server?

Unix-based mail servers are built using a number of components because a Unix-style environment is, by default, a toolbox operating system. A stock Unix-like server already has internal mail; more traditional ones also come with a full MTA already part of the standard installation.

Which mail server is best in Linux?

7 best Linux mail servers for 2022

  • Exim.
  • Postfix.
  • SquirrelMail.
  • Axigen.
  • Citadel.
  • Zimbra Email Server.
  • Horde.

How many types of mail servers are there?

Mail servers can be broken down into two main categories: outgoing mail servers and incoming mail servers. Outgoing mail servers are known as SMTP, or Simple Mail Transfer Protocol, servers. Incoming mail servers come in two main varieties.

INTERESTING:  Best answer: What does CD do in Linux?

What is a mail server example?

Microsoft Exchange, Exim and Sendmail are common examples of mail server programs. A mail server works with other programs to create a messaging system. A messaging system includes all the applications necessary to keep email moving smoothly.

What is SMTP host name?

Outgoing Mail Server Settings (SMTP)

Setting Description Example
SMTP Host Name Outgoing mail server name. Most often
SMTP Username The email address you want to set up.
SMTP Password The password associated with your email account. ——–

How do I setup a mail server?


  1. Click Admin tab on the web console.
  2. Under Server Settings, click Mail Server Settings.
  3. Specify the following information: Server Name : Port : 465 (SSL) / 587 (TLS) Sender Email Address: Your email address. Test Email Address: email address to receive test mails. Email Type: SMTP / SMTPS.

What is the best mail server?

Gmail is the overall best email service. Outlook is good for multiple app integrations. Yahoo has good spam blocking capabilities. Zoho Mail is the best option for home businesses. AOL provides unlimited storage.

What is the most popular mail server?

As of today, Gmail is the most used service worldwide. In fact, in the second quarter of 2020, there are almost 1 billion and 700 thousand active users.

What is Exim mail server in Linux?

Exim is a mail transfer agent (MTA) used on Unix-like operating systems. Exim is free software distributed under the terms of the GNU General Public License, and it aims to be a general and flexible mailer with extensive facilities for checking incoming e-mail.

INTERESTING:  How does Ubuntu Server work?

What is SMTP path?

An SMTP transaction consists of three command/reply sequences: MAIL command, to establish the return address, also called return-path, reverse-path, bounce address, mfrom, or envelope sender. RCPT command, to establish a recipient of the message. This command can be issued multiple times, one for each recipient.

What is Relay in SMTP?

SMTP relay services allow businesses to send email without using their own servers or domain so that marketing messages can be separated from internal email communications. Email client software such as Outlook or Thunderbird provides a graphical interface for users to work with SMTP relay.

How start SMTP in Linux?

Configure the E-mail Options tab of the Site Administration page:

  1. In the Sending E-mail Status list, select Active or Inactive, as appropriate.
  2. In the Mail Transport Type list, select SMTP.
  3. In the SMTP Host field, enter the name of your SMTP server.