---
title: A glossary if you are experiencing account and email provider issues
description: Trouble enrolling contacts in a HubSpot sequence? Learn what common error messages mean and how to fix them.
---
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# A glossary if you are experiencing account and email provider issues
In HubSpot, when you attempt to enrol a contact in a sequence, you may encounter error messages informing you that the contact cannot be enrolled.
**Here are some common reasons why a sequence may not be behaving as expected:**
| Error Message | Meaning | Solution |
| --- | --- | --- |
| **Rate limit reached** | HubSpot imposes send limits so you don't exceed your email provider's send limit. | Re-enroll the contact at the next step. |
| **Send failure** | A "Permanent fail" error occurred for the contact. This could be due to an issue with your internet connection or your email provider preventing the email from sending. | Check your internet connection Re-enroll the contact at the current step Reconnect your inbox if needed. |
| **Inbox disconnected** | HubSpot was unable to access your email account to send the sequence step because your inbox disconnected. | Check your inbox connection within HubSpot and your email client to ensure it's properly connected. |
| **Gmail send error** | The first step in the sequence was sent through Gmail and failed. HubSpot cannot determine the cause of the error. | Try re-enrolling the contact from Gmail after a few minutes. If the issue persists, contact Google Support or use the CRM to enroll the contact. |
#### Gmail send error
**Meaning:** The first step in the sequence was sent through Gmail and failed. HubSpot cannot determine the cause of the error.
**Solution**
After a few minutes, try re-enrolling the contact from Gmail again
If the issue persists:
- Contact Google Support
- Use the CRM to enrol the contact.
#### **Inbox disconnected**
**Meaning:** HubSpot was unable to access your email account to send the sequence step because your inbox disconnected.
**Solution**
- Check your inbox connection within HubSpot.
- Verify the connection in your email client.
#### **Rate limit reached**
**Meaning:** HubSpot imposes send limits so you don't exceed your email provider's send limit.
**Solution:**
- Re-enrol the contact at the next step.
#### **Send failure**
**Meaning:** A "Permanent fail" error occurred for the contact. This could be due to an issue with your internet connection or your email provider preventing the email from sending.
**Solution:**
- Check your internet connection.
- Re-enrol the contact at the current step.
- Reconnect your inbox if needed.
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