Take Control of Delivery Sequence: Choose Your Campaign Send Order

Take Control of Delivery Sequence: Choose Your Campaign Send Order

Optimize deliverability, warm up sends with your best contacts, and ensure fair subscriber distribution across every campaign run

Tired of the same contacts or email domains receiving your messages first every single time? tinyEmail now allows senders to select the exact delivery sequence for recipients right from the new Send order step in campaign setup. This gives you complete flexibility over how your audience receives your emails.

What's New: Three Delivery Options

When setting up a campaign, you can now choose from three distinct delivery sequence options:
  • Standard: Contacts are sent in our default order (alphabetical by domain and email). This remains unchanged from current behavior.

  • Shuffled: Contacts are randomized so that no single part of your email list or domain group is always first.

  • Most engaged first: Contacts with the highest open and click activity receive the email first to generate strong initial engagement signals.

Why It Matters

Until now, every traffic-shaped campaign effectively went out in alphabetical order. That meant the exact same contacts — and the same email domain providers — were always at the front of every send, while the tail end of your list was consistently last.

💡 Strategic Benefits

• Shuffled spreads delivery traffic evenly across email domain providers and subscribers with every send.

• Most engaged first allows you to "warm" a send by delivering first to your highest-responding subscribers, establishing positive inbox placement signals early in the send run.

What Changes for Existing Campaigns

Nothing. Any existing campaign or draft without an explicit send order choice will continue sending exactly as it does today, including campaigns that are currently mid-send. No migration or backfill is required, and no action is needed from your team.

Where It's Available & API Configuration

The new send order controls are available across both the web interface and developer APIs:
  • Campaign Setup UI: Select your preference in the new Send order step during campaign creation.
      

  • tinyEmail API: Supported on POST /v1/campaign and PUT /v1/campaign/{campaignId} using the field sendOrder.

🔧 Public API Specifications

• Field: sendOrder • Valid Values: ALPHABETICAL (Standard), RANDOM (Shuffled), ENGAGEMENT_SCORE (Most engaged first) • Default: Omitting sendOrder defaults to ALPHABETICAL, keeping existing integrations 100% backward-compatible. • GET Response: The sendOrder value is included in all campaign GET API payloads.

Important Rules & Known Limitations

  • Stable Shuffling: Shuffled ordering is fixed and deterministic for the life of a campaign—it is not re-rolled during sending. Paging through a large audience will never duplicate or skip recipients. Separate campaigns sent to the same list will generate distinct random shuffles.

  • Audience Preparation Lock: Most engaged first cannot be changed once a send has started preparing, as engagement data is captured when the audience is initially generated. The API will reject mid-preparation switches to Most engaged first with a clear error message. You can, however, switch back to Standard or Shuffled at any time.

  • Engagement Data Dependency: Most engaged first requires active engagement-score data. For accounts without engagement history, selecting this option currently behaves identical to Standard. We recommend guiding users on new accounts toward Shuffle