# [PostShiba](<https://www.postshiba.com/pricing>)

Email delivery priced by dedicated sending-cluster capacity.

[Paid](<https://creatorstoolbox.com/top-paid-tools>)·[Email](<https://creatorstoolbox.com/top-email-tools>)·[API](<https://creatorstoolbox.com/top-api-tools>)·[Developer Tools](<https://creatorstoolbox.com/top-developer-tools-tools>)

[Paid](<https://creatorstoolbox.com/top-paid-tools>)·[Email](<https://creatorstoolbox.com/top-email-tools>)·[API](<https://creatorstoolbox.com/top-api-tools>)·[Developer Tools](<https://creatorstoolbox.com/top-developer-tools-tools>)

![PostShiba preview 1](<https://creatorstoolbox.com/images/mailcheaper-launches/postshiba.png>)

## What is PostShiba?

PostShiba offers email delivery through sending clusters with fixed capacity limits. Plans are selected by the throughput a workload needs. Both the busiest hour and the rolling 24-hour sending volume matter.

The service is currently an invitation-only beta with a separate production approval process. Marketing and transactional email require separate clusters. When a cluster reaches its capacity, excess sends are throttled rather than billed as per-message overages.

Official details: [https://www.postshiba.com/pricing](<https://www.postshiba.com/pricing>) ; [https://www.postshiba.com/use-cases](<https://www.postshiba.com/use-cases>)

Pricing: Fixed monthly cluster fees rather than per-email overages. Invitation-only beta access and production approval are required. Pricing checked October 26, 2026.

## Features

- Email delivery API

- Fixed-price sending clusters

- Hourly and rolling daily quotas

- Separate marketing and transactional clusters

## FAQs

Common questions about PostShiba

Can anyone immediately send production email?

No. PostShiba is invitation-only, and production approval is separate from beta access.

What happens when a cluster reaches its limit?

Excess sends are throttled. The application must retry when capacity becomes available; marketing and transactional traffic require separate clusters.

## Ask AI about PostShiba

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Canonical source: https://creatorstoolbox.com/tools/postshiba