Dear #Fediverse and #Mastodon admins currently there is a massive wave of spam registrations everywhere in the fediverse. For mastodon, I have a solution that works for me: Create new file /etc/nginx/conf.d/lsbt-registration-spam.conf: map "$request_method:$uri:$http_user_agent" $block_lsbt_registration_spam { default 0; ~^POST:/api/v1/accounts:Python/3\.[0-9]+\ aiohttp/ 1; } Add to the server block in /etc/nginx/sites-available/mastodon: location = /api/v1/accounts { if ($block_lsbt_registration_spam) { return 403; } try_files $uri @proxy; } @michaela@lsbt.me @njakob@lsbt.me @MikeGorden@lsbt.me #fediverse #mastodon #registrationspam #spam #registration #Automatedprotocoldeliverabilityprobe #lsbt