Corrections, evidence questions, and notes about a claim all come to the same address.
Email rafael.b.moraes@gmail.com to report an error, challenge an evidence label, ask how a result was produced, or suggest a problem worth testing. Material corrections are checked against the underlying source or artifact before the article is changed.
I read every message. A correction waits until the source or artifact has been re-checked. Other notes get a reply within a few days.