mod_unsubscriber: Revoke roster subscriptions of unreachable hosts Wrote a version of this long ago, but it was lost to time. Here it is again, from scratch!

author: Kim Alvefur <zash@zash.se>
date: Sun, 19 Feb 2023 17:39:04 +0100
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_unsubscriber/README.md	Sun Feb 19 17:39:04 2023 +0100
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+Over the years, some servers stop working for various reasons, and leave
+behind broken roster subscriptions that trigger failing s2s connections.
+This module allows cleaning up such cases by unsubscribing local users
+from their contacts on those servers. Also works for typos and the like.
+Use with care.
+
+```lua
+Component "gmail.com" "unsubscriber"
+```
author	Kim Alvefur <zash@zash.se>
date	Sun, 19 Feb 2023 17:39:04 +0100