Metre2 Mail - free
Metre2 Mail is private by default. Pictures that tell a sender you've opened their email are hidden until you choose; tracking tags are taken off links before they open; every email is shown sandboxed, with no scripts or forms; and emails pretending to be from someone they're not get a clear warning. No ads, no Metre2 account, and your mail never passes through our servers.

Sheet 01SandboxedRemote images blockedLinks cleaned
Pictures that load from the internet are hidden, and a bar says how many. Show pictures shows them for this email; Always from the sender trusts them.
Remove tracking from links (on by default) takes utm_, fbclid, gclid and similar tags off a link before it opens. A link whose text shows one site but goes to another is flagged first.
Emails are shown in a sandbox with no scripts and no forms. The caption under each one says what was done.
An email that says it's from a bank, a delivery company or another well-known name but comes from somewhere else gets a red warning, with Report as junk and Block sender.
One-click Unsubscribe on mailing lists, and Block sender - or a whole domain - straight to Junk.
Help: Reading email has every option in detail.
Free in Metre2 Mail. No time limit, no ads, no account, and your mail never passes through our servers. Mail Pro is there when you want every account in one inbox, categories, AI drafts and unlimited rules.
Yes. Your mail goes straight between your PC and your email provider - it's never copied to Metre2's servers, and there are no ads. Passwords are kept in Windows Credential Locker.
A tiny picture, often invisible, that loads from the sender's server when you open an email - which tells them you opened it, when, and roughly where. Metre2 Mail hides them until you choose to show them.
Each email is shown in a sealed-off frame where scripts can't run and forms don't work, so an email can only be read, not act on your PC.
Only anonymous usage counts - how often features are used - which you can turn off. Never your mail, contacts or passwords.
Yes. Every privacy feature is in the free app.

Work and school mail through Microsoft Graph - even where IMAP is switched off.

PST and OST files folder by folder, .mbox and .eml too - duplicates skipped.

Summaries free; reply drafts and translations with Pro - nothing leaves your PC.

Three free rules, and one right-click to make one. Unlimited with Pro.

Pin to the top with P, free. Colour-code with C in Mail Pro.

Blueprint paper in light, deep navy in dark - every email on clean paper.
Metre2 Mail is free. Mail Pro is a one-off £9.99, with a free 7-day trial.