hMailServer – Part 1 – Create the Necessary Records (A, MX, PTR, SPF, DMARC) for hMailServer

👉 Code in this video: https://totatca.com/ttc17/

👉 Website MX toolbox: https://mxtoolbox.com/

📌 hMailServer on Windows:

👉 Part 1 – Create the Necessary Records (A, MX, PTR, SPF, DMARC) for hMailServer: https://youtu.be/LHGA1TdD1Uk

👉 Part 2 – Install and Configure hMailServer on Windows: https://youtu.be/eVdLM75qHvo

👉Part 3 – Create Accounts and Setup Email on Email Client : https://youtu.be/8lHvJj2y8M4

👉 Part 4 – Install and Configure DKIM for hMailServer: https://youtu.be/8lHvJj2y8M4

👉 Part 5 – Install and Configure SSL on hMailServer: https://youtu.be/xHS8l77WKo8

👉 Part 6 – Install and Configure WebAdmin for hMailServer: https://youtu.be/p6dXx9RScrw

👉 Part 7 – Install and Integrate SpamAssassin on hMailServer: ✍️ updating

👉 Part 8 – Install and Integrate ClamAV on hMailServer: ✍️ updating

👉 Part 9 – Install and Configure WebMail with Roundcube for hMailServer: ✍️ updating

👉 Part 10 – Configure Multi Domain on hMailServer: ✍️ updating

📌 Watch more:

👉 WireGuard tutorials: https://www.youtube.com/playlist?list=PLVOvvL8uZFz5UT7TiF0HIe-JfZa-QhBil

👉 Zabbix tutorials : https://www.youtube.com/playlist?list=PLVOvvL8uZFz4nCzi7qU8p9Vu3sb_Kptfi

👉 OpenLDAP tutorials: https://www.youtube.com/playlist?list=PLVOvvL8uZFz4g1mWzf6gxBfb_iRTYWXqV

👉 OCS Inventory tutorials: https://www.youtube.com/playlist?list=PLVOvvL8uZFz42VpmQqQ61Qh3SelwjpySw

👉 Ubuntu/Debian: https://www.youtube.com/playlist?list=PLVOvvL8uZFz7QDS65ItKy0EySAUMOM2jk

👉 CentOS | RockyLinux | AlmaLinux | RHEL: https://www.youtube.com/playlist?list=PLVOvvL8uZFz7fX-v6BPXS2SoajStHqzYn

👉 Windows Server: https://www.youtube.com/playlist?list=PLVOvvL8uZFz4OCohbD26v2veu_IkAwxhg

👉 Windows 11/10/7: https://www.youtube.com/playlist?list=PLVOvvL8uZFz5BX3NScglyH2mDXncxnaFq

👉 Firewall tutorials: https://www.youtube.com/playlist?list=PLVOvvL8uZFz4Z-lOBFvwOfqrboWJ24t34

👉 VMware/ESXi tutorials: https://www.youtube.com/playlist?list=PLVOvvL8uZFz6JgfL_2kdZfrDygGfUlSHi

✅ What is A record?
An A record in the context of DNS (Domain Name System) refers to a type of DNS record used to map a domain name to an IPv4 address. The A record contains information about the IPv4 address of the server that the domain points to. When a computer attempts to access a domain name, the DNS system queries the DNS server to find the corresponding A record and returns the associated IP address to establish a connection. This allows computers to use domain names instead of having to remember the specific IP addresses of servers.

✅ What is MX record?
An MX record, or Mail Exchange record, is a type of DNS (Domain Name System) record used to specify the mail servers that are responsible for receiving email messages on behalf of a domain. MX records are used to direct incoming email traffic to the appropriate mail servers based on their priority values. Each MX record contains a mail server’s domain name and a priority value. When someone sends an email to an address within a specific domain, their email server looks up the domain’s MX records to determine where to deliver the email. The mail server with the highest priority (lowest numerical value) in the MX records is attempted first. If that server is unavailable, the server with the next highest priority is used. This allows for redundancy and efficient email delivery across different mail servers.

✅What is PTR record

A PTR record, or Pointer record, is a type of DNS (Domain Name System) record that is used in the reverse DNS lookup process. While standard DNS maps domain names to IP addresses (using A records), reverse DNS does the opposite – it maps IP addresses to domain names.

PTR records are primarily used to verify the authenticity of an IP address by associating it with a corresponding domain name. They’re commonly used for email authentication and security purposes, helping to reduce the likelihood of spam and ensuring that the sender’s IP address matches the claimed domain name.

In reverse DNS lookups, when an IP address is provided, the DNS system queries the PTR records associated with that IP address to retrieve the corresponding domain name. This helps identify the organization or entity associated with that IP address.

PTR records are particularly important for maintaining a reliable and secure network environment, as they provide a way to validate the legitimacy of network connections based on the information returned in the reverse DNS lookup process.