Module headers 

SWIFT Message Headers and Trailers

SWIFT FIN block structures for MT message headers and trailers.

Block Structure

• Block 1: Basic Header - Sender identification and routing
• Block 2: Application Header - Message type and delivery info
• Block 3: User Header - Optional service tags (UETR, validation flags)
• Block 5: Trailer - Security (MAC, checksum) and control tags

Usage

use swift_mt_message::headers::{BasicHeader, ApplicationHeader};

let basic = BasicHeader::parse("F01DEUTDEFFAXXX0000123456")?;
let app = ApplicationHeader::parse("I103CHASUS33AXXXN")?;

Structs

BalanceCheckpoint

Balance checkpoint for Tag 423 (MIRS recovery)

BasicHeader

Block 1: Basic Header

InputApplicationHeader

Input Application Header

MessageInputReference

Message Input Reference (Tag 106, MIR format)

MessageOutputReference

Message Output Reference (MOR format)

MessageReference

Message Reference for MRF tag

OutputApplicationHeader

Output Application Header

PaymentControlsInfo

Payment controls info for Tag 434

PaymentReleaseInfo

Payment release info for Tag 165 (FINInform)

PossibleDuplicateEmission

Possible Duplicate Emission for PDE tag

PossibleDuplicateMessage

Possible Duplicate Message for PDM tag

SanctionsScreeningInfo

Sanctions screening info for Tag 433

SystemOriginatedMessage

System Originated Message for SYS tag

Trailer

Block 5: Trailer

UserHeader

Block 3: User Header

Enums

ApplicationHeader

Block 2: Application Header