How to identify issues with outgoing emails in cPanel/Webmail Print

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If you're having issues with outgoing emails in cPanel/Webmail, there could be several reasons, such as incorrect email settings, server-side issues, or email client misconfigurations. Here are some steps to help you debug the issue:

  1. Check email settings:

Verify that your email settings are correctly configured in your email client (such as Outlook, Thunderbird, or your mobile device's mail app). Ensure that you are using the correct outgoing mail server (SMTP), port, and authentication method. The recommended settings can typically be found in your cPanel under "Email Accounts" > "Connect Devices" or "Configure Mail Client".

  1. Test from Webmail:

Try sending an email directly from Webmail (e.g., Roundcube, Horde, or SquirrelMail) in your cPanel. If you can successfully send an email from Webmail, the issue might be related to your email client's configuration or your local network settings.

  1. Verify email account limits:

Check if your email account has reached its sending limits or if it's suspended. In cPanel, go to "Email Accounts" and look for any warning messages or suspension notices. If you see any issues, contact your web host's support team for assistance.

  1. Review email logs:

If you have access to the email logs on your server, check them for any error messages or clues related to the issue. The logs are typically located in the /var/log/ directory, such as /var/log/exim_mainlog and /var/log/exim_rejectlog for Exim (cPanel's default mail server). If you don't have access to these logs, ask your web host's support team to review them for you.

  1. Check server's SMTP service:

Verify that the SMTP service on your server is running and functioning correctly. If you have root access to the server, you can check the SMTP service status using the command-line interface (e.g., service exim status for Exim). If you don't have root access, contact your web host's support team for assistance.

  1. Test SMTP connectivity:

Use an online SMTP testing tool like MxToolbox ( or SMTPer ( to test the connectivity of your outgoing mail server. These tools can help you identify issues with your SMTP server, such as incorrect configurations, firewall blocking, or blacklisting.

  1. Check for blacklisting:

Your server's IP address or domain could be blacklisted by email service providers, causing outgoing emails to be rejected or marked as spam. Use an online blacklist checking tool like MxToolbox ( or MultiRBL ( to check if your server's IP address or domain is blacklisted. If you find any blacklisting issues, follow the necessary steps to get your IP or domain removed from the blacklist.

  1. Contact your web host's support team:

If you're still experiencing issues with outgoing emails, reach out to Domain India support team  for assistance. They can help you identify and resolve any server-side issues or configuration problems.

Remember to provide as much information as possible when contacting the support team, such as the email address you're having issues with, the email client you're using, any error messages you've encountered, and the steps you've already taken to troubleshoot the issue.

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