@elettrona yes, only Pros, see the ActivityPub Spec. which has exactly the same "addressing" fileds like mail … E.g. w3.org/TR/activitypub/#client- @selfhosted

@pepper0 @aussocialadmin @lemmy_ca_support summing up:Lemmy posts have different URLs to the same Object. Your example was lemmy.world/post/31535735/1772 which is lemmy.world/post/31535735/For mastodon you need to delete anything after the last '/' and put the "lemmy.world/post/31535735/" in the search box and you get the fedi-object instead of the url. Then you can share that. Not saying this is intended, just saying, it works :)

@pepper0 @aussocialadmin @lemmy_ca_support then delete the last path segment of the lemmy post.The canonical url for your example is lemmy.world/post/31535735 and that works. I am not sure what the "/17725147" is good for.It might either has to do with redirects or lemmys Content-Negotiation.They should figure out.

@pepper0 For mastodon, you make em visible by putting the whole url in the mastodon search box and enter, tried with lemmy.ca/post/50437467 [from posted lemmy group] @aussocialadmin @admin @lemmy_ca_support