Email clients
Mimestream privacy rating
Closed-source macOS email client for Gmail and Google Workspace accounts that syncs through the Gmail API and supports labels, filters and inbox categories.
Summary
Mimestream scores 50 out of 100 (grade D) on the email clients criteria. It meets 2 of 8 criteria: no trackers or telemetry and no ads or data sales. It partly meets independent audit, connects directly, blocks remote content and works with any provider. It does not meet open source and OpenPGP support. It is based in the United States: Five Eyes member; subject to the US CLOUD Act.
Score 50 out of 100. How scoring works
Criteria
- No
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
No analytics services are listed among subprocessors or in the privacy policy, and the website loads no third-party trackers.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Funded by paid subscriptions. No ads.
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Partial
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
A CASA Tier 2 assessment by TAC Security is published only as a letter of validation, not a full report.
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No
OpenPGP support Weight 2 of 3
Can the app encrypt and sign mail with OpenPGP, built in or through an official add-on?
Neither PGP nor S/MIME is supported.
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Partial
Connects directly Weight 3 of 3
Does the app connect directly to your mail server, without passing mail or passwords through the vendor's servers?
Syncs directly with the Gmail API and keeps tokens on the device, but Private Push notifications, on by default on recent macOS, pass through a Mimestream relay that never receives credentials or message content.
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Partial
Blocks remote content Weight 2 of 3
Are remote images and tracking pixels blocked by default?
Remote images can be blocked in settings, and a tracker blocker is available.
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Partial
Works with any provider Weight 1 of 3
Does the app work with any standard IMAP and SMTP provider?
Works only with Gmail and Google Workspace accounts.