Sending & Limits
💎Max Once you hit Send now (or a scheduled time arrives), Timeblu delivers your campaign in the background. You can close the page - the campaign detail screen shows live progress whenever you come back.
How delivery works
- Sending starts within about a minute of the send time.
- The audience is resolved at that moment, and each recipient is processed once - a campaign never emails or texts the same client twice.
- Messages go out gradually rather than all at once. This protects your sender reputation (and keeps large blasts from being flagged as spam), so a big campaign can take a while to complete - the detail page shows sent / failed counts in real time.
- Each recipient on the detail page ends in one state: Sent, Failed, Skipped (for example, no usable contact details), or Unsubscribed.
Email: monthly cap
Email campaigns share a cap of 5,000 campaign emails per calendar month per account.
If a campaign would exceed the remaining quota, it sends what it can and then pauses automatically:
- You get a notification email telling you how many recipients are still waiting.
- The campaign shows Paused - monthly email cap reached on its detail page.
- On the 1st of the next month the quota resets and the campaign resumes by itself, picking up exactly where it left off.
- Don’t want it to resume? Cancel the campaign - the pending recipients are dropped.
The confirmation dialog warns you up front when your audience is larger than your remaining quota, so the pause never comes as a surprise.
SMS: credits and pay-as-you-go
SMS campaigns draw from the same SMS balance as reminders:
- Your monthly included credits are used first (300 per month on Max).
- With pay-as-you-go enabled, additional messages are billed at €0.07 per SMS on your next invoice.
- With pay-as-you-go off, a campaign that runs out of credits sends what it can and pauses with “SMS credits exhausted”. It resumes automatically when your quota refreshes - or as soon as you enable PAYG.
If you have zero SMS available and PAYG is off, Timeblu blocks the send entirely and points you to Settings → SMS.
Before any SMS send, the confirmation dialog breaks the cost down: how many messages are covered by your quota, how many would be pay-as-you-go, and the estimated cost. PAYG overage always requires an explicit acknowledgment.
Editing, canceling, deleting
| Action | Allowed when |
|---|---|
| Edit | Draft or Scheduled. Once sending starts, content is locked so every recipient gets the same message. |
| Cancel | Draft, Scheduled, Sending, or Paused. Pending recipients are dropped; already-sent messages can’t be recalled. |
| Delete | Draft or Canceled only - completed campaigns stay as your sending history. |
A paused campaign can’t be edited - if you need to change its content, cancel it and create a new campaign for the remaining audience.
Other limits at a glance
- Campaigns can be scheduled up to 30 days in advance (in your business timezone).
- Test sends: 10 per hour, email campaigns only.
- Email body: up to 30 blocks and 6 images (5 MB each).
- SMS body: a single message - 160 characters (standard alphabet) or 70 (Unicode).