zSender bloghttps://zsender.io/blog2026-10-05T00:00:00ZzSender@fastify/cors v11 blocks browser DELETE and PATCHhttps://zsender.io/blog/fastify-cors-v11-default-methods2026-10-05T00:00:00ZA major bump of @fastify/cors narrowed its default methods to GET, HEAD and POST. Browsers stopped sending DELETE and PATCH, and our server logged no error.pino logs your Error as {} unless the key is errhttps://zsender.io/blog/pino-error-key-err2026-10-05T00:00:00Zpino runs its error serializer on the key err only. Under any other key an Error goes through JSON.stringify and is logged as an empty object.SpamAssassin DNSBLs go quiet on shared DNShttps://zsender.io/blog/spamassassin-dnsbl-shared-resolver2026-10-05T00:00:00ZBlocklists refuse queries that arrive through a shared DNS resolver. SpamAssassin scores the refusal at 0.001, and the spam score still looks normal.