TL;DR

Check three things: make sure your campaign has an active sending schedule that matches your timezone (Campaign settings → Schedules & launch), confirm your daily sending limit isn’t too low (Settings → Sending limits), and ensure your leads are ready to send (not stuck in To review). Once these are correct, you can launch the campaign.

Symptoms

Campaign status shows Draft or Paused with no emails delivered
Scheduled emails don't appear in Sent folder or campaign reports
Send every X minutes indicator shows "0" emails scheduled for the day
Leads stuck in To review status and won't move to sequence

Environment

Applies to all active email campaigns in lemlist. Requires a connected sending address and access to campaign settings and workspace Settings.

Step-by-Step Fix

1. Check schedule settings

Open Campaigns, then click the campaign that isn’t sending.

In the campaign, click the gear icon (Settings), then open Schedules & launch and confirm a schedule is assigned under Your campaign schedules.

Verify:

A schedule exists and is assigned to the campaign
Timezone matches your location
Days and Start/End hours match when you want to send
The schedule is enabled (and not restricted in a way that blocks today’s sending)

If needed, click the three dots next to the schedule, then select Modify this schedule.

✅ Verify: The schedule shows the correct sending window/timezone for your campaign.

2. Check daily sending limit

From the main app, click your name in the bottom-left corner, then select Settings.

Open Sending limits and review the Maximum number of emails sent by lemlist in 24h for the sending address. Adjust the limit if needed.

⚠️ If you’re hitting the limit:

Increase the limit (within your provider’s recommended safe volume), or
Reduce volume by increasing delays/spreading sends over more days

✅ Verify: Your campaign’s expected daily volume fits within the configured daily limit.

3. Review leads

Go to the campaign Lead list. If leads are in To review status, they won’t start sending.

If status shows To review:

Approve/reject leads as needed, or
Enable automatic review (if available for your setup) so new leads can start automatically

✅ Verify: Leads move from To review to an active state and can enter the sequence.

4. Verify the sending address is connected

Go to Settings → Sending settings and confirm your email address is listed and active/connected.

✅ Verify: The sending address is enabled and shows no connection issues.

5. Launch the campaign

Once schedules, limits, and lead statuses are correct, open the campaign’s Launch step and click Launch for X leads.

Confirm It's Fixed

✓ Campaign can be launched and starts processing leads

✓ Emails appear in the Sent folder and campaign Reports

✓ Leads progress through the sequence (instead of staying blocked)

Why It Happens

lemlist won’t send emails outside your defined schedule, above your configured daily quotas, or when leads require review/approval. Schedules control when messages can be sent, limits control how many can be sent per day, and lead review controls who can be contacted.

Prevent this: Keep schedules/timezones correct, set realistic daily limits, and review leads promptly.