From fdfde5bad5274ab9ccc81f55a0b9a590d422e7d2 Mon Sep 17 00:00:00 2001
From: Martin Ashby <martin@ashbysoft.com>
Date: Sun, 4 Jul 2021 17:30:29 +0100
Subject: Add documentation for -login-key cli option

---
 docs/cli.md | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'docs/cli.md')

diff --git a/docs/cli.md b/docs/cli.md
index ca7c7e8..4ca2bbf 100644
--- a/docs/cli.md
+++ b/docs/cli.md
@@ -35,10 +35,18 @@ The following URL schemes are supported:
 
 **-debug**: enable debug logs and print IMAP network activity
 
+**-login-key**: supply a secret key to preserve logins over application restart.
+
 **-h**, **--help**: show help message and exit
 
 # SIGNALS
 
 **SIGUSR1**: reloads templates and Lua plugins
 
+# LOGIN-KEY
+
+A login key can be used to preserve user sessions over application restarts if
+the user has selected 'remember me' on the login page. A key can be generated 
+by running `go run github.com/fernet/fernet-go/cmd/fernet-keygen`
+
 [RFC 6186]: https://tools.ietf.org/html/rfc6186
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