SMTP

RFC 5322 - Internet Message Format

RFC 5322 defines the format of electronic mail messages transmitted via SMTP. It specifies the syntax for message headers (From, To, Subject, Date, etc.) and body structure. Works in conjunction with RFC 5321.

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Specification
https://datatracker.ietf.org/doc/html/rfc5322

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API entry from apis.yml

apis.yml Raw ↑ 
aid: smtp:rfc5322
name: RFC 5322 - Internet Message Format
description: RFC 5322 defines the format of electronic mail messages transmitted via SMTP. It specifies
  the syntax for message headers (From, To, Subject, Date, etc.) and body structure. Works in conjunction
  with RFC 5321.
humanURL: https://datatracker.ietf.org/doc/html/rfc5322
tags:
- Email Format
- RFC
- IETF
- Message Headers
- Standards
properties:
- type: Specification
  url: https://datatracker.ietf.org/doc/html/rfc5322