# Schedule a broadcast and use phased (warm) sending

Source: https://help.meisa.io/articles/schedule-a-broadcast

To schedule a broadcast, choose **At a set time** under **When it goes** and pick a **Day and time**. To protect your sender reputation, choose **In waves, most engaged first** under **How fast**: Meisa sends to your best openers first and spreads the rest over up to 24 hours.

## Schedule a broadcast

1. Open a draft from **Broadcasts**, or click **New broadcast**.
2. Fill in **Who gets it** and **What they get**. See [Send your first broadcast](/articles/send-your-first-broadcast).
3. Under **When it goes**, choose **At a set time**.
4. Pick the **Day and time**. It uses the time zone shown under the picker ("Your time zone: ...").
5. Click **Review and schedule**, check the summary and click **Schedule for** the date shown.

The broadcast now shows as **Scheduled** in the list.

## Change or cancel a scheduled broadcast

1. Open the broadcast from **Broadcasts** (filter by **Scheduled** to find it).
2. Click **Unschedule** and confirm. It becomes a draft again.
3. Make your changes, then schedule it again.

## Send in waves (warm sending)

Sending a big list all at once is the fastest way to hit spam folders, especially from a newer domain. Waves fix that: mailbox providers first see opens and clicks from people who like your email, then the rest follows.

1. Under **How fast**, choose **In waves, most engaged first**.
2. Set **Hours between waves** (1 to 24, default 8).
3. Read the plan that appears once the draft is saved, for example "4,820 people in 3 waves, most engaged first", with each wave's size and start time. Wave 1 is marked "(your best openers)".

How Meisa plans the waves:

| Audience size | Number of waves |
|---|---|
| Under 1,000 | 2 |
| 1,000 to 4,999 | 3 |
| 5,000 to 19,999 | 5 |
| 20,000 or more | 7 |

- People are ranked by real (human) opens over the last 90 days. Machine opens from security scanners do not count.
- The whole send always finishes within 24 hours. If your gap is too long to fit, Meisa shortens it automatically.
- Waves work for both **Right away** and **At a set time**.

Choose **All at once** for small, warm lists or time-critical messages where every minute matters.

## Pause or stop a send in progress

While a broadcast is sending (in waves or not), open it to see progress. Use **Pause sending** to hold the remaining emails, **Resume sending** to continue, or **Cancel the rest** to stop for good. People who already got it are not affected.

## Troubleshooting

- **The wave plan does not show:** it appears once the draft is saved. Wait for the save, or check that **Who gets it** matches at least one person.
- **"Repeating broadcasts don't send."** Click **Duplicate as a one-time broadcast** and schedule the copy.
- **It went out at the wrong hour:** check the time zone shown under **Day and time**.

## Related articles

- [Send your first broadcast](/articles/send-your-first-broadcast)
- [Read your results: real opens vs raw opens, clicks and bounces](/articles/read-broadcast-results)
- [My emails are going to spam: what to check](/articles/emails-going-to-spam)
- [Understand your sending health score](/articles/sending-health-score)