1.7 Versioning and Capability Negotiation

• 2/14/2019
• 2 minutes to read

The SMTP Extensions introduce no new versioning mechanisms beyond those that exist in SMTP, as described in [RFC5321] and [RFC6531].

Negotiation of SMTP options is specified in [RFC5321] section 4.1.1.1, [RFC6531] section 3.2.