Tools › Thunderbird
Thunderbird
By Mozilla
Category: email
Pricing: open-source
Free plan: Available
Free-plan limits: Entirely free to download and use; funded by donations rather than paid tiers.
Best for: Offices that prefer a desktop client holding several IMAP or Exchange accounts locally, with no per-seat licence cost.
Checked when listed: against the vendor's own page
Automated re-check: 10/6/2026, 11:13:04 AM
Official resources
Links to Mozilla's own pages. Each one was checked before it was listed here.
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