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Gated vs Thunderbird
Annual estimate10 people, entry price
Free
Free
Offer
No offer right now
No offer right now
Focus
Email Management
Email Management
Product
Email prioritization tool that filters sales noise and surfaces important messages with donation-based challenges for unknown senders.
Free open-source email client by Mozilla with tabbed interface, smart folders, add-on ecosystem, and built-in calendar and chat features.
Headquarters
San Francisco, California
San Francisco, California
Company size
11-50 employees
51-200 employees
Free options
Free plan
Free plan
Source updated
Oct 29, 2026
Nov 2, 2026
Capabilities
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Integrations
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Best for
Company size
Security and switching
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Case studies and sources
Case studies
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Email Management
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