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Scheduling

You can send a campaign immediately or schedule it for a future date and time. Scheduled campaigns also support timezone-aware delivery so subscribers receive your email at the right local time.

Send Immediately

Choosing "Send Now" starts delivering the campaign right away. The status moves directly from Draft to Sending, and then to Sent once all emails are dispatched.

This is the simplest option when timing isn't critical or when you want to send as soon as the content is ready.

Schedule for Later

Pick a date and time, and MailJawn will send the campaign automatically. The status changes to Scheduled until the send time arrives, at which point it transitions to Sending and then Sent.

Tip

Schedule campaigns for when your audience is most likely to check their email. For many app developers, weekday mornings (9–10 AM in the subscriber's timezone) tend to perform well.

Timezone Strategies

When scheduling a campaign, you choose a timezone strategy that controls how the send time is interpreted.

Fixed Timezone

All subscribers receive the email at the same moment in time.

Example: You schedule for "January 15 at 9:00 AM Eastern Time."

  • A subscriber in New York gets it at 9:00 AM ET
  • A subscriber in Los Angeles gets it at 6:00 AM PT
  • A subscriber in London gets it at 2:00 PM GMT

Use Fixed when:

  • The content is time-sensitive (a flash sale that starts at a specific moment)
  • You want all subscribers to receive it simultaneously
  • Your audience is primarily in one timezone

Recipient Timezone

Each subscriber receives the email at the same local wall-clock time, regardless of where they are.

Example: You schedule for "9:00 AM in the subscriber's timezone."

  • A subscriber in New York gets it at 9:00 AM ET (2:00 PM UTC)
  • A subscriber in Los Angeles gets it at 9:00 AM PT (5:00 PM UTC)
  • A subscriber in London gets it at 9:00 AM GMT (9:00 AM UTC)

Use Recipient when:

  • You want to reach everyone during their morning, afternoon, or evening
  • Your audience is spread across multiple timezones
  • The exact moment of delivery doesn't matter as much as the local time of day

How Subscriber Timezones Are Determined

MailJawn uses the timezone stored on each subscriber record. If a subscriber doesn't have a timezone set, the project's default timezone is used as a fallback.

How Recipient Timezone Delivery Works

MailJawn groups subscribers by timezone and creates a separate delivery batch for each group. Batches are scheduled so that each group's batch fires at the target wall-clock time in their timezone.

If a timezone group's target time has already passed when the campaign is scheduled, that batch is bumped forward to the same time the following day.

You can track progress through the batch counter — MailJawn shows how many timezone batches have been completed out of the total.

Cancelling a Scheduled Campaign

You can cancel any scheduled campaign before it starts sending. Cancellation returns the campaign to Draft status, so you can edit it, change the targeting, or reschedule.

Warning

Once a campaign enters Sending status, it can no longer be cancelled. The transition from Scheduled to Sending happens when the scheduled time arrives.

Scheduling Summary

Option Behavior Best For
Send Now Delivers immediately to all targeted subscribers Time-sensitive announcements
Fixed Timezone All subscribers receive at the same UTC moment Flash sales, coordinated launches
Recipient Timezone Each subscriber receives at their local wall-clock time Newsletters, engagement campaigns