FOLD, explained.
How FOLD works on macOS, iPhone and iPad: setup, accounts, search, encryption, sender authenticity, automation and the command line. Written from the code, not from the roadmap.
Every page here describes what the shipped app does today. Where a feature is planned, prepared in the engine but not yet reachable in the app, or limited to one platform, the page says so.
- 01Getting started
Install FOLD, add the first account and learn the layout in ten minutes.
- 02Accounts and identities
Automatic server discovery, OAuth for Google, manual IMAP and SMTP setup, aliases and signatures.
- 03Reading and organising
Unified inbox, conversations, folders, tags, smart folders, favourites and offline behaviour.
- 04Writing and sending
Compose, reply from the right address, undo send, drafts, attachments, templates and read receipts.
- 05Search
The search grammar: operators, phrases, regular expressions, dates, sizes and the German aliases.
- 06Keyboard and command palette
Every shortcut on macOS and iPad, and what the command palette can do.
- 07Encryption and signing
S/MIME and OpenPGP: keys, certificates, what happens when you sign, encrypt or receive encrypted mail.
- 08Sender authenticity
How FOLD verifies DKIM itself, aligns it with DMARC, and what the indicators in the reader mean.
- 09Rules and automation
Filter rules in the search grammar, when they run, and the foldmail command line.
- 10Security and privacy
What FOLD stores, where, and which servers it talks to. Fortress Mode, app lock and iCloud sync explained.
- 11Updates and releases
How the direct download keeps itself current, how to verify a download, and how iOS is delivered.
- 12Troubleshooting
Provider quirks, sync errors, incomplete messages and how to read the activity log.