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Sinka

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Fan one Gmail inbox out to many team inboxes. IMAP APPEND copies, never forwards: no send limits, no shared passwords. Runs on your machine or on Cloudflare's edge.

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Cost / License

  • Free
  • Open Source (MIT)

Since

  • New

Updated

  • Updated Oct 2026

Platforms

  • Linux
  • Self-Hosted
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  • janasco added Sinka
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    janasco added Sinka as alternative to Gmail

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Sinka was added to AlternativeTo by janasco on and this page was last updated .

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What is Sinka?

Sinka reads one Gmail inbox you already use and files a byte-exact copy of every new message into each team member's own inbox. Nothing is forwarded, nobody shares a mailbox password, and everyone reads their mail where they already read it.

  • It reads the mail in one inbox you control.
  • It files an identical copy into every team inbox you list.
  • It shows you on one page whether that is really happening.

Sinka is an open-source alternative to Gmailify, running the other way. Gmailify pulls many addresses into one Gmail account; Sinka fans one inbox out to many.