Email Not Sending - Troubleshooting Guide Print

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If your emails are not sending, try these steps:

1. Check SMTP Settings:

  • Server: Your assigned Mail Server Hostname (found in Plesk under Websites & Domains > your domain > Mail Accounts > the info icon). See: Where can I Locate my Mail Server Settings?
  • Port: 587 (TLS) or 465 (SSL)
  • Authentication: Required (use full email address)

Important: Do NOT use adaptivewebmail.com as your mail server — that is the webmail interface only (browser-based access at https://adaptivewebmail.com). Your email client (Outlook, Thunderbird, etc.) must use the assigned mail server hostname found in your Plesk control panel.

2. Common Causes:

  • Incorrect password
  • Blocked port (try different ports)
  • SPF/DKIM not configured
  • Daily sending limit reached

3. Check Outgoing Mail Queue:

4. Verify Domain DNS:

  • Ensure MX records point to our mail servers
  • Add SPF record: v=spf1 include:_spf.adaptivewebhosting.com ~all

If issues persist, contact support with the error message you receive.


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