Troubleshooting
My newsletter isn't sending
If a campaign gets stuck "Sending" or returns an error, check these points before contacting support.
1 min readLast updated:
Common causes
- Monthly limit reached: check Dashboard → Apps → Newsletter → Usage.
- Invalid Resend API key (if using your own domain): regenerate it in Resend and paste it back.
- Email domain not verified: in Resend, your domain must show as "Verified".
- Campaign missing subject or empty body: the validator blocks incomplete sends.
- Empty list: you need at least 1 confirmed subscriber.
What to do if it still fails
Email support@flowti.co including the campaign ID (visible in the URL). We have detailed logs and can identify the exact error.
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