Mo. Rev. Stat. § 432.230: Legal recognition of electronic records, electronic signatures, and electronic contracts.

1. A record or signature shall not be denied legal effect or enforceability solely because it is in electronic form.

2. A contract shall not be denied legal effect or enforceability solely because an electronic record was used in its formation.

3. If a law requires a record to be in writing, an electronic record satisfies the law.

4. If a law requires a signature, an electronic signature satisfies the law.