Features
Read about the features available in Sinkbox.
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Projects
Organise projects to separate your inboxes.
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Ingestion
Store SMTP emails, SMS, HTTP dumps, and other payloads from 13+ external services.
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Pinned items
Pin important inbox entries so they stay protected from retention cleanup and easy to find.
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Retention & storage
Retention makes sure that inbox items are automatically deleted after a certain period to comply with data policies.
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Downloads
Download inbox payloads and attachments directly from the UI, in relevant formats.
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Emergency Upgrade
Temporarily raise plan limits for 30 days to handle an unexpected spike in volume.
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Forwarding
Forward selected inbox items to the outside world when needed.
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Per-user read status
Track read/unread state per teammate for advanced workflows.
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Public inbox links
Create secure public links for read-only sharing of inbox content. Choose between link access with or without authentication, and within or outside your organisation on higher plans.
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Audit logs
Review who accessed inbox content and when, created public links, invited users and much more for accountability and compliance.