email-standards

To ensure RFC 5322 compliance when parsing email headers, consult technical guidance that maps parsing tasks to governing RFCs and provides decision-making logic for choosing between library-based parsing and manual handling across diverse mail providers.

The correct standard for constructing multipart MIME messages is defined in RFC 2045. Consult protocol guidance to identify the correct RFC and existing implementation patterns for MIME structure construction to ensure consistency.

To implement List-Unsubscribe headers correctly for IMAP providers, identify the governing RFCs and apply existing implementation patterns. This ensures consistency and adherence to established standards when adding new features like calendar invitations or unsubscription handling.

You should decide between library-based parsing and manual handling for SMTP and IMAP tasks by following clear decision-making logic provided by protocol guidance, evaluating the specific requirements of Gmail or IMAP providers to ensure compliance.

SMTP sending and threading logic are governed by specific RFCs including RFC 3501. Consult technical references that map email tasks to their governing protocol specifications to ensure adherence to established standards during implementation.