March 29, 2023

How Mail Server Works: Explaining SMTP, MTA, MUA, MSA, LDA, MRA

In this video, We explored how a mail server works. I have Explained Mail Server in great detail. Explaining SMTP, MTA, MUA, MSA, LDA, MRA. These Email Protocols will reveal how email works step by step and how mail server works in Linux.

To learn about Email Servers or SMTP servers, We must first gain a good understanding of Email Protocols or SMTP Protocols. Otherwise, we won’t be able to comprehend their behaviour. It will be critical to understanding the various tools and terminologies associated with the mail servers.

Here, I’ve discussed the simple mail transfer protocol (SMTP), the Mail Transfer Agent (MTA), the Mail User Agent (MUA), the Mail Submission Agent (MSA), the Local Delivery Agent (LDA), and the Mail Retrieval Agent (MRA). We will have a better understanding of how an email server works in real life if we can understand their relationships and activity.


Visit Mail Server Configuration Playlist:

Visit Mail Server Design Series Playlist:

Visit Linux DNS Server Configuration Playlist:

Linux Mail Server Configurations:

Linux Mail Server Postfix Architecture:
Linux Mail Server Configuration Step by Step:
How to Configure a Subdomain Mail Server:
How to Configure Primary and Secondary MX:
Mail Server SMTPS 465 Port with SASL and TLS:

Mail Server Design and Deployment Guidelines:

How to Configure a Mail Server:
Incoming & Outgoing Mail Server:
Primary and Backup Mail Server:
Incoming Mail Server Load Balancing:
Outgoing Mail Server Load Balancing:
Incoming Spam Filter Deployment:

Linux DNS Server Configurations:

Install and Configure Linux DNS Server:
Primary DNS Or Master DNS Server Configuration:
Secondary DNS Or Slave DNS Server Configuration:
Caching DNS Server Configuration:
DNS Forwarder Configuration with Caching DNS:
Forward Zone Configuration For DNS Forward Lookup:
Reverse DNS Configuration For DNS Reverse Lookup:

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