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Guide to Troubleshooting Email Problems for DomainIndia.com Reseller Hosting

3 min readPublished 4 Mar 2026Updated 16 Apr 20261,906 views

In this article

  • 1Introduction
  • 21. Gather Information & Identify the Issue
  • 32. Verify Domain & Hosting Status
  • 43. Check & Configure DNS Records
  • 54. Verify Email Account Settings

Introduction

As a technical support operator for DomainIndia.com reseller hosting, it's essential to efficiently diagnose and resolve email-related issues that clients may encounter. This guide provides a step-by-step troubleshooting approach to ensure smooth email operations within a reseller hosting environment.


1. Gather Information & Identify the Issue

Start by collecting details from the client: Error messages received
Screenshots (if available)
Email client & version used (Outlook, Thunderbird, etc.)
Any recent changes to DNS, settings, or passwords

Pro Tip: Ask the client to try sending and receiving emails via Webmail (Roundcube, Horde). If Webmail works fine, the issue is likely with their email client configuration.


2. Verify Domain & Hosting Status

Ensure the client's domain is active and correctly pointed to the hosting server.
Check DNS settings, MX records, and hosting package resource usage to confirm everything is correctly configured.

Check DNS status using: MxToolbox


3. Check & Configure DNS Records

Ensure the client's email-related DNS records are properly set:

Essential DNS Records for Email Functionality:

  • MX (Mail Exchange) Record Directs email to the correct server.

  • SPF (Sender Policy Framework) Prevents spoofing by allowing only authorized servers to send emails.

  • DKIM (DomainKeys Identified Mail) Digitally signs outgoing emails for authentication.

  • DMARC (Domain-based Message Authentication) Defines email authentication policies.

Use online tools like MXToolbox to verify these records.

Related Guide: Understanding SPF, DKIM, and DMARC


4. Verify Email Account Settings

Ensure the client's email account is properly set up in cPanel: Correct email address & password Check for email quota limits (Increase if exceeded) Ensure account is active & not suspended


5. Check Email Client Configuration

Correct email client settings:

Incoming Server: mail.yourdomain.com
Outgoing Server: mail.yourdomain.com
IMAP Port: 993 (SSL/TLS)
POP3 Port: 995 (SSL/TLS)
SMTP Port: 465 (SSL/TLS) or 587 (STARTTLS)
Authentication: Required

Enable SMTP authentication in the email client settings. Use secure SSL/TLS encryption for outgoing emails.

Related Guide: Troubleshooting SMTP Relay Issues in VPS Hosting


6. Inspect Server Logs & Identify Common Email Issues

Common Issues & Fixes:

Cannot Send or Receive Emails:

  • Verify SMTP/POP/IMAP settings.

  • Check DNS records and email client configuration.

  • Inspect server logs for errors.

Emails Going to Spam:

  • Check SPF, DKIM, and DMARC authentication.

  • Review email content for spam triggers.

  • Ensure server IP is not blacklisted.

Email Quota Exceeded:

  • Delete old emails or increase mailbox size via cPanel.

Authentication Errors:

  • Confirm correct email credentials (username & password).

  • Ensure SMTP authentication is enabled.

Check Server Email Logs:

tail -f /var/log/exim_mainlog

Related Guide: Managing Exim Mail Queue: Comprehensive Guide


7. Escalate If Necessary

If the issue persists after performing the above troubleshooting steps, escalate it to higher-tier support or a specialized email team.

What to Include in the Escalation Client's email address & domain Screenshots of errors (if available) Logs or diagnostic results Steps already attempted


8. Communicate Clearly with the Client

Keep the client updated on troubleshooting progress. Provide step-by-step instructions for fixes. Explain issues in simple terms (avoid jargon). Follow up to ensure resolution.


9. Document & Maintain a Knowledge Base

Log the issue & steps taken to resolve it. Update internal documentation to help future troubleshooting. Contribute to DomainIndia.com's knowledge base to assist other team members.


Conclusion: Be Methodical & Proactive!

By following these structured steps, reseller hosting email issues can be quickly diagnosed and resolved. Providing excellent support not only helps retain clients but also strengthens DomainIndia.com's reputation.

Related Resources:

Need Additional Help Contact Domain India Support! https://www.domainindia.com/support

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