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# MSGID / Message-ID Conversion for Fido-Internet Gateways

## Martin Junius`<mj@fido.de>`

Version 4.2 of 01 May 1997, supersedes the MSGID.DOC version 4.1.

This document describes the conversion between FIDO ^AMSGID/^AREPLY and Internet RFC mail/news Message-ID/References. It is a recommendation for a common handling of message ID passing for FIDONET-Internet gateways.

## 1. Credits

## 2. Formats

- 2.1 FTN ^AMSGID Kludge Formats
- 2.2 RFC Message-ID Formats

## 3. Non-FIDONET FTNs

## 4. Converting FTN ^AMSGID to RFC Message-ID

- 4.1 FIDO messages without ^AMSGID
- 4.2 FTN MSGID with Internet ID
- 4.3 Generic MSGID Conversion

## 5. RFC Message-ID to FTN MSGID Conversion

- 5.1 NOMSGID Message-IDs
- 5.2 Normal Message-IDs
- 5.3 Converted FTN Message-IDs

## 6. Splitting Messages

## 7. Computing CRC32 values

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