Feature

Hit every inbox with Spread Sending

Drip out high‑volume campaigns over time for peak deliverability and engagement.

A spread sending tool interface features a black background, yellow header, and white text for instructions and settings.

Trusted by companies worldwide

Smarter send strategy

SendX spaces out emails to avoid server strain, dodge spam filters, and reach subscribers when it counts.

Throttled Delivery

Control send rate to prevent infrastructure overload and bounce spikes.

  • Set custom emails‑per‑minute limits
  • Balance volume across dedicated IPs
  • Maintain steady ISP reputation
A campaign spreadsheet displays the total contacts (300), sending rate (≈ 1 email every 5 minutes), and completion time (Aug 17, 2025, 3:04 AM) for a timeframe from July 1, 2025, to August 16, 2025.
Natural Send Patterns

Staggered sends mimic human behavior, boosting inbox placement.

  • Reduce spam‑triggering volume spikes
  • Increase open rates with gradual rollout
  • Adapt windows to time‑zone clusters
A campaign dashboard displays a
Flexible Windows & Insights

Pick the ideal spread window and monitor real‑time performance dashboards.

  • Schedule from 10 minutes to 24 hours
  • Live charts show sends vs opens
  • Export logs for compliance reviews
A dark-designed digital calendar displays a spread sending deadline of 24 hours on August 16, 2023, with a boost deliverability message.
How Spread Sending elevates deliverability

SendX queues messages, meters the flow, and optimizes timing—all automatically.

1

Define Your Window

Choose a time range and rate; SendX handles the pacing.

2

Adaptive Throttling

Our engine adjusts throughput if ISP feedback suggests slowdown.

3

Measure & Refine

Review delivery graphs and tweak future windows for optimum impact.

Frequently asked questions

Everything you need to know about SendX and email marketing

How do I enable Spread Sending?

Toggle it on under Campaign Settings, then set your preferred send window and rate.

What’s the ideal spread window length?

It depends on list size and ISP mix. Start with 1‑2 hours for 100k+ contacts and adjust from there.

Will spreading sends delay delivery too much?

Most recipients still get emails within the first hour; the benefit to deliverability outweighs slight delays.

Does Spread Sending help with spam complaints?

Yes. Lower per‑minute volume reduces ISP suspicion and gives you room to react to early complaint signals.

Can I edit the window after the campaign starts?

You can shorten or extend live windows; SendX recalculates pacing instantly.

Still have questions? We're here to help.

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