There are many post visibility settings on Mastodon:
🌎 Public - Everyone can see it
🌘 Unlisted/Quiet Public - Everyone can see it but it won't show up in search results or trends
🔒 Followers Only - Only your followers can see it
@ Mentions/Specific People - Only people you mention can see it, often used for DMs
WARNING: If you mention someone's account (if you @ them), they will be able to see that post on ALL visibilities.
Lots more info at:
➡️ https://fedi.tips/who-can-see-my-posts-in-mastodon-how-do-i-send-dms-in-mastodon
Edited 7d ago