Review Warmup Analytics
To verify whether warmup is working correctly, review your account's warmup analytics for the last 7 days:
Go to the Email Accounts dashboard
Click on the email account you want to check
In the right-side panel, review the summary for the past week
Warmup email received: Warmup emails received in your account
Warmup email sent: Warmup emails sent from your account
Saved from spam: Warmup emails saved from the spam folder
Review daily warmup email graphs for the last 7 days
Note: If you recently enabled warmup, warmup emails will start sending after the next 12:00 AM UTC.
Warmup Paused
Accounts are automatically paused when your free trial or Outbound plan expires. This also pauses the warmup and campaigns.
To unpause:
Go to the Email Accounts dashboard
Select all paused accounts
Click the three dots(…) in the top right corner
Click "Unpause selected accounts" to unpause all accounts
Repeat the above process to re-enable warmup for your accounts in bulk
Important: An active Outbound plan is required to keep warmup active after the 14-day free trial expires.
Warmup Enabled but Not Sending
If your accounts aren't paused, but warmup emails still aren't going out, follow the troubleshooting steps below based on your account provider:
For accounts purchased from Instantly:
Check if DFY/Airmail/Pre-warmed accounts are active in the Email Accounts & Domains section.
If canceled: The accounts have already been canceled and are no longer active. To restore them, reorder via Email Accounts → Add or Buy Accounts → DFY Google or Instantly Airmail → Existing domains.
If accounts are active but still not sending: Contact support for assistance.
For accounts not purchased from Instantly:
Go to the Email Accounts dashboard
Filter by "Status > Sending errors/Has errors"
Click "Test domain setup" to verify your DNS records are configured correctly. Missing or incorrect DNS records (MX, SPF, DKIM, DMARC) can cause emails to bounce and accounts to disconnect
Warmup Disabled (Red Flame Icon)
Warmup is disabled when your accounts bounce warmup emails from other users in the Instantly warmup pool. This protects the quality of the warmup pool for all users.
For accounts not purchased from Instantly:
Before reactivating warmup, verify your DNS setup:
Go to the Email Accounts dashboard
Click 'Test domain setup' to verify DNS records are configured correctly
If DNS records are missing or incorrect, contact your email provider to fix them before proceeding
Once the DNS records are properly configured, you can follow the steps below to request warmup reactivation codes and enable the warmup:
Go to the Email accounts dashboard and click on the red flame icon.
Click 'Request Reactivation Code'
Check your email inbox for the reactivation code (sent to the same email address you're reactivating)
Enter the code and click Submit
Warmup will be re-enabled
Troubleshooting reactivation codes:
Can't receive the code? If you see the error "Couldn't send an email, please check if the account address is deliverable," your account is currently undeliverable. Use a verification tool to check the account status and contact your email provider to ensure it can receive emails.
Code shows as invalid? This happens when multiple codes are requested - each new request invalidates previous codes. Wait 5–10 minutes without requesting a new code, then request once more and use the latest code received.
For accounts purchased from Instantly:
If your DFY/Airmail/Pre-warmed accounts show a red flame icon, please contact support for assistance.