Metre2 Mail Pro
Every newsletter, offer and mailing list you get, in one list, busiest first - with how many they've sent in the last 30 days. Unsubscribe and move their emails to Archive in one go, keep the ones you want out of the way, and if a list keeps sending after you've left, Mail says so and offers Block. Part of Mail Pro.

Sheet 01SubscriptionsBusiest first
Click Subscriptions on the left rail. Every sender of newsletters and mailing lists is listed, busiest first: how many in the last 30 days, how many in all, and when the last one came.
Look through older mail checks emails that arrived before this version, so lists you've had for years show too.
Unsubscribe uses the list's own unsubscribe - a one-click request, an unsubscribe email, or its page in your browser - and can move everything from them in your Inbox to Archive at the same time.
Keep moves a list you want into Kept, out of the way.
If a list keeps emailing more than a couple of days after you've unsubscribed, it's marked Still sending with a Block button that sends them straight to Junk.
Help: Organising email has every option in detail.
Part of Mail Pro. Metre2 Mail is free. Mail Pro is a one-off £9.99 upgrade inside the app, bought through the Microsoft Store - no subscription, no account. Try it free for 7 days.
Newsletters and mailing lists carry a standard unsubscribe header. Subscriptions groups the emails that have one by sender, outside Sent, Drafts, Junk and Trash.
It uses only the list's own unsubscribe: the standard one-click request, an unsubscribe email from your account, or the list's secure web page, opened in your browser. Insecure links are never used.
Yes - the Unsubscribe button beside an email's date is free for everyone. Subscriptions, the list of them all, is part of Mail Pro.
Subscriptions is part of Mail Pro, a one-off £9.99 upgrade with a free 7-day trial.
It's shown with Block instead, which sends their email straight to Junk - free.

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.

Tracking pictures hidden, links cleaned, every email sandboxed, fakes flagged.

What, when, where and who - Accept, Tentative or Decline in one click. Free.

Click the bell as you send, and get a nudge if nobody replies. Mail Pro.
Metre2 Mail is free. Mail Pro is a one-off £9.99, with a free 7-day trial.