Guides

Practical fixes for the admin chores our apps were built around.

How to fix SPF "too many DNS lookups" (PermError)
Why SPF records break past 10 DNS lookups, how to count yours, and four ways to get back under the limit without losing mail.
7 min read · Postcheck
How to see which Tailscale devices are offline (and get alerted) from your Mac
Three ways to check which machines on your tailnet are offline — the admin console, the CLI and the API — and how to get a notification when one drops.
6 min read · Meshbar