61
Mastodon not federating to Lemmy?
(lemmy.ca)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 16 Mar 2026
61 points (96.9% liked)
Fediverse
41166 readers
69 users here now
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, Mbin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Rules
- Posts must be on topic.
- Be respectful of others.
- Cite the sources used for graphs and other statistics.
- Follow the general Lemmy.world rules.
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration)
founded 2 years ago
MODERATORS
> @a_gee_dizzle@lemmy.ca said in Mastodon not federating to Lemmy?: > > So my question is, does anyone know what caused this and if so how I can fix it?
Mastodon doesn't know to send replies to the community for distribution to the rest of the threadiverse.
Long story short if you're not on the same instance as the community, Mastodon replies to you won't make it to the rest of the threadiverse.
I experimented with a hack to see if I could fix this. NodeBB works around this by including a hidden mention to the community that Mastodon will then pre-fill in the text box, and then the reply will make it in successfully. If you have a Mastodon account try to reply to this comment, the community will be pre-filled as a mention.
Piefed, Lemmy, and Mbin will need to do this.
Does it work? Yes
Are we supposed do it? Technically no, it's easier to blame Mastodon for not doing it right.
Should we do it? Probably, yes.
@rimu@piefed.social @nutomic@lemmy.ml @bentigorlich@gehirneimer.de @melroy@mastodon.melroy.org I tested this. It works perfectly fine. We can implement this today and remove it when Mastodon supports threadiverse conversations better (I'll try to make that happen.)
Good idea, adding this to Lemmy.
https://github.com/LemmyNet/lemmy/pull/6409
@nutomic @julian oh wow thats great to hear. Gotta love a hack
Sounds good to me!
Did you receive my email from last Thursday? Seems there might be some delivery problem.
About batched votes? Yeah I did, just haven't responded yet 👍
I was asking Rimu, but good to get confirmation that it's working for you at least :)
Sorry - email is the channel which adds things to my todo list so when I get too busy I become avoidant about it. Just opening Thunderbird makes me a little anxious! "Ahh, yes, the app which brings more pain, here we go again"
I see, that is understandable.
my dude (dudette?) , you're doing an amazing job, so thank you
Unless the person replying on Mastodon removes it of course (to save themselves some characters and because they don't recognise it).
There doesn't seem any functional difference between your comment (which implicitly Mentions the community), and the original post on thecanadian.social (which explicitly Mentions it). Screenies from activitypub.academy show that replies to both include both Mentions pre-filled.
https://thecanadian.social/@mike/116234121499688717 didn't remove the Mention, and so the comment made it to Lemmy. https://mstdn.ca/@cass_m/116234270845317774 did remove the Mention, and so it didn't.
Specifically for Lemmy btw, the reply at https://mstdn.ca/@cass_m/116234270845317774 demonstrates another problem - that instance requires a signed GET request for its actors, which hasn't been fully implemented AFAIK.
Oh... That explains a lot of. Thank you for sharing the cause and the solution (^_^)
Wow that’s a really proactive response, thank you! Please keep me posted on how it goes
@julian @a_gee_dizzle @rimu @nutomic @BentiGorlich @melroy I’m replying from mastodon, don’t you see it ?
I see it