Setup Mail Server (RoundCube webmail) on cPanel + SharedHosting

INTRODUCTION

+ RoundCube webmail is a web-based, multilingual IMAP client that has an interface similar to that of a desktop application. It has all the features you would expect from an email client, such as an address book, folder manager, message search, and spell checker (among others).

+ In this guide, I’ll walk you through the steps of configuring domain-based email in RoundCube using cPanel on 1Byte’s shared hosting

PREREQUISITES

+ A Shared Hosting along with Domain Name

+ If you don’t have none of them. You can purchase them from 1Byte’ site

STEPS BY STEPS

1. Switch Your Nameserver to Basic DNS

+ Go to User Dashboard

+ Select Domain on the left menu bar

+ Choose Manage button at the domain where you want to set up email

+ At the Nameserver area, switch to Basic DNS

2. Add Dns Records

+ For example, my domain is 1byte-demo.uk, and I would like to have an email admin@1byte-demo.uk based on this domain

+ First of all, you need to add A Record for your website

				
					#Add A Record for your site
Type: A Record
Host: @
Value: 220.158.232.16
TTL: 30 min

Type: A Record
Host: @
Value: 220.158.232.16
TTL: 30 min

#Add A Record for your mail
Type: A Record
Host: mail
Value: 220.158.232.16
TTL: 30 min

#Add TXT Record for your mail
Type: TXT Record
Host: default._domainkey
Value: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsmZJ6TO/BmM43TGeIUUgK5g4z+UuayjZheE2Cxjr7Ib5cYy/8NTkiqHMoHrkVuNEX96qb9VR1yVOm2fqJxm/bBpsbCA9KQpQrlbnmJQ6cI5BwOylEjnKYtgnEIFiR63fS4R3Xxkdi9mn73CaElAoVGJce1ixzR4rdnx/gKr43B52yaCBeOG6GkUU/hqMp3sMsVNceZ139PwKFqN7EQ85PK8cWcy8oLFn7tG/qzxaxR3pwZKeecj2SBanWzHly4tvScqCPMTc5M7YbEC/L5TQZX7L7nda8fvjehkGYQ0rdkZC7vFuHPMDDOPl27CMhhB+LnnWUQU1cXToxcK5ngrjVQIDAQAB;
TTL: 30 min

Type: TXT Record
Host: @
Value: v=spf1 +mx +a +ip4:220.158.232.16 ~all
TTL: 30 min

+ With the above record and its value added. The end outcome will be similar to the picture below

+ In Mail Settings section please choose Custom MX and add two MX record for your email

				
					#Add MX Record for your mail
Type: MX Record
Host: @
Value: mail.1byte.com
TTL: 30 min

Type: MX Record
Host: s1.1byte.com
Value: mail.1byte.com
TTL: 30 min

+ After Add Custom MX the result will look like image below

BIG NOTE:

+ As you can see in the 1Byte’s YouTube, I set TTL = 1 minute for testing purposes only, since I want the DNS system to clear the cache and update the current settings every 1 minute. However, for production sites, this value will be ineffective since you are abusing the DNS System, causing it to become overcrowded and unstable.

→ The time to live (TTL) is often set to 30 or 60 minutes. Because of this, I advise changing the TTL for all DNS Recors to 30 or 60 minutes.

3. Create A New Email Account

+ Go to User Dashboard

+ Select Share Hosting at the left menu bar

+ Select the cPanel button at the Shared Hosting server where you want to set up email

+ Go to Email Accounts

+ Click on Create button to create new email account

+ Input new email user account and password then click create button

4. Start Testing Sending & Receiving Mails

+ After you have completed all of the above instructions, ensure that your new email can send and receive messages. Let’s go check it out together.

+ Click Check Email button

+ Click open Roundcude webmail

1 . Send email test to another Gmail account

+ When you send to Gmail, the mail will be sent to the Spam box
+ Tell Gmail that the sent email is not SPAM

2 . Send email test from Gmail back

+ Congratulation we are successfully setup email on ROUNDCUBE

VIDEO WALKTROUGH FROM STEP 1 TO STEP 4

BIG NOTE:

+ As you can see in the Video Walkthrough, I set TTL = 1 minute for testing purposes only, since I want the DNS system to clear the cache and update the current settings every 1 minute. However, for production sites, this value will be ineffective since you are abusing the DNS System, causing it to become overcrowded and unstable.

→ The time to live (TTL) is often set to 30 or 60 minutes. Because of this, I advise changing the TTL for all DNS Recors to 30 or 60 minutes.

CONCLUSIONS

+ You should use your professional email address to convey confidence in your brand, company, or organization. Once you’ve decided on a domain name that reflects your company or profession.

+ So, if you haven’t already, go ahead and buy now!