It will be removed from your letters on every linked device. Anyone who already has the link and words can still read it.

Linking

Linking syncs your letters and addresses across your devices. Wipe one device and they're still safe on the others.

Backup

Letters on tidings are deleted after one year. Keep your precious ones by adding a 5-year storage stamp. A book of 200 is $10.

Stamps are coming soon.

Most email providers scan links in emails and open them for metadata. Adding a three worded passphrase stops their bots from doing this. But you are still passing the key to your text in an email the recipient's provider can read.

If you want end-to-end encryption, use 'Share by phone' with Signal or WhatsApp, or pass the three worded passphrase to your friend in person, SMS or in a call.