EBU Single Rulebook Q&A 8 October 2018 2018_4315 Strong Authentication

Is one time passcode (OTP) Mail considered as a "Strong Customer Authentication" under Regulation (EU) 2018/389 – RTS on strong customer authentication and secure communication? Authentication by OTP mail reunites 2 authentication factors :1. The one-time password received by mail, enrolled by the payer's bank2. The password to access mails, only known by the payer.