Email Troubleshooting
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Email Management
<h3>Common Email Issues and Solutions</h3>
<p>Email problems can be frustrating, but most issues have straightforward solutions. This guide covers the most common email sending and receiving problems and how to resolve them.</p>
<h3>Cannot Send or Receive Email</h3>
<p>If email is not working at all, check these items first:</p>
<ol>
<li><strong>Verify your credentials</strong> - Log in to webmail to confirm your username and password are correct.</li>
<li><strong>Check server settings</strong> - Ensure your email client has the correct server, port, and encryption settings.</li>
<li><strong>Check DNS records</strong> - Verify that your domain's MX records point to the correct mail server.</li>
<li><strong>Check disk quota</strong> - If your mailbox or account is full, new messages cannot be delivered.</li>
</ol>
<h3>Emails Going to Spam</h3>
<p>If your outgoing emails are landing in recipients' spam folders:</p>
<ul>
<li><strong>Check SPF record</strong> - Ensure your domain has a valid SPF record that includes your mail server's IP. Example: <code>v=spf1 a mx ip4:YOUR.SERVER.IP ~all</code></li>
<li><strong>Check DKIM</strong> - Verify that DKIM signing is enabled for your domain in DirectAdmin.</li>
<li><strong>Check DMARC</strong> - Add a DMARC record to improve email authentication. Example: <code>v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com</code></li>
<li><strong>Check blacklists</strong> - Use tools like <code>mxtoolbox.com</code> to check if your server's IP is on any email blacklists.</li>
<li><strong>Avoid spam triggers</strong> - Do not use excessive capitalization, exclamation marks, or spam-like phrases in your emails.</li>
</ul>
<h3>Cannot Connect to Mail Server</h3>
<p>If your email client cannot connect:</p>
<ul>
<li>Verify the server hostname or IP address is correct.</li>
<li>Check that you are using the correct ports (993 for IMAP, 995 for POP3, 587 for SMTP).</li>
<li>Ensure the correct encryption method is selected (SSL/TLS for IMAP/POP3, STARTTLS for SMTP).</li>
<li>Check if your ISP or network is blocking email ports. Try connecting from a different network.</li>
<li>Temporarily disable any firewall or antivirus software that may be interfering with email connections.</li>
</ul>
<h3>Email Bouncing Back</h3>
<p>If you receive bounce-back messages (NDR/DSN), the error code indicates the cause:</p>
<ul>
<li><strong>550 User not found</strong> - The recipient's email address does not exist. Check for typos.</li>
<li><strong>552 Mailbox full</strong> - The recipient's mailbox is over its storage quota.</li>
<li><strong>554 Rejected</strong> - The message was blocked by the recipient's spam filter or security policy.</li>
<li><strong>421 Too many connections</strong> - Temporary issue. Retry sending later.</li>
</ul>
<div class="alert alert-info">When contacting support about email issues, provide the full bounce-back message or error details, the sender and recipient email addresses, and the approximate date and time of the issue. This helps us diagnose the problem quickly.</div>
<div class="alert alert-warning">If your server's IP has been blacklisted, sending email may be disrupted until the listing is removed. Contact our support team for assistance with blacklist delisting requests.</div>
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