Close CRM Email Sync Not Working

How to fix it

Try these in order — the most common fix is first.

1. 1. Reconnect the account

   Copy steps
   1. Go to Settings > Accounts & Apps
   2. Click the account with the red error background
   3. Gmail/Microsoft: click Reconnect and follow the prompts; custom IMAP/SMTP: re-enter the password and Save
   4. Emails in the outbox send and incoming mail syncs retroactively
   Did this fix it? Yes No

2. 2. Resume failed emails

   Copy steps
   1. Open the failed email activity
   2. Click Retry Sending (errored emails are not retried automatically)
   Did this fix it? Yes No

3. 3. Check provider limits

   Copy steps
   1. Confirm you have not exceeded Gmail/Microsoft daily sending limits
   2. Reduce sequence volume, then reconnect
   Did this fix it? Yes No

Symptoms

Red error on the email account, emails stuck in the outbox, new replies not appearing on leads.

Why it happens

• Email password changed
• Email two-factor authentication changed
• Provider sending limits exceeded
• Authenticated SMTP disabled on Microsoft 365
• Mailbox address differs from the address added to Close

This guide also covers

• close crm email not syncing
• close email sync error
• close crm gmail not syncing

The same problem in other apps

All sync failures guides →

• Pipedrive Email Sync Not Working (Pipedrive)
• HubSpot Salesforce Sync Errors (HubSpot)
• Salesforce Einstein Activity Capture Not Syncing (Salesforce)
• Freshsales Email Not Syncing (Freshsales)
• Copper Email Sync Not Working (Copper)

Other Close errors

• Close CRM Outlook / Office 365 Not Sending or Syncing
• Close CRM Calls Not Connecting
• Close CRM Poor Call Quality / Choppy Audio
• Close CRM No Audio or Microphone Not Working
• Close Power Dialer Not Working or Stuck
• Close CRM SMS Not Sending (10DLC / A2P Registration)
• Close Zapier Integration Not Working
• Close Workflow / Sequence Paused After Email Error