SMTP / SMTPs

SMTP/SMTPs (Simple Mail Transfer Protocol/Secure or SMTP over SSL): This a protocol for sending email messages between servers. Most email systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an email client.

SMTPs is a method for securing SMTP with transport layer security and is intended to provide authentication of the communication partners. SMTPs is not an extension of SMTP; it is a way to secure SMTP at the transport layer.

SMTP Protocol
Integration Connectors

Connect to Your Trading Partners Using SMTPs

Power your most critical business exchanges and securely connect to your customers, suppliers, and partners via Cleo's industry-leading SMTPs integration solution.

Our deep protocol flexibility enables robust B2B/EDI connection and SMTPs integration capabilities, giving your business a competitive advantage.

B2B Protocol Exchange

Cleo Solutions Certifications

Drummond Group
Drummond Certified

Cleo's secure AS2, AS3, and AS4 protocol connectors are fully certified by Drummond Group for interoperability and conformance, and for the reliability and security of data interchange.

FIPS
FIPS Certified

Cleo offers a FIPS 140-2 Certified data encryption solution that meets the security requirements set forth by the US National Institute of Standards and Technology (NIST) for government agencies and other firms with technology solutions and services used in the government sector.

OFTP2
Odette Certified

Cleo provides an Odette-certified OFTP2 protocol connector, ensuring reliable data interaction and the secure exchange of critical business data.