Domain not verified
Drip campaigns require a verified sending domain. Go to Company Settings → Mail Domain and check the status of your domain. If it shows as Pending, your DNS records may not have propagated yet — this can take up to 48 hours.
No eligible contacts
Your audience conditions may not match any contacts, or all matching contacts may be excluded (unsubscribed, paused, or at a company with an open deal). Review your audience filter and check the audience count preview.
Campaign is paused
Check the campaign status. If it is paused, click Resume to restart sending.
Sender address invalid
The sender email address must come from a verified domain. If the domain has been removed or unverified, update the sender selection on the campaign.