I successfully installed a microblog.pub instance on my YunoHost server with the official -ynh package. The instance works well otherwise, but the handler @email@example.com can’t be accessed from multiple popular Mastodon instances. I can confirm the DNS and SSL certificate are correctly configured by using the build-in commands of YunoHost, and a quick check of webfinger responses also seems OK. Could you instruct on what else may be the cause and how to further troubleshoot? Thanks.
I have exactly the same problem.
My ActivityPub Id - @firstname.lastname@example.org
I could send the follow requests to other microblog.pub instances and I could see follows count increased.
But Other popular instances accounts like mastodon unable to find my Id. For ex: the following URL results in 404 not found. https://mastodon.social/@email@example.com