How Emails and Conversations Are Threaded in Re:amaze

Re:amaze threads conversations using the In-Reply-To email header, which is standard in modern email clients. If this header is not present, Re:amaze will use the References header instead.

If an email does not include either header, Re:amaze falls back to the Thread-Topic header and subject line matching. Both the In-Reply-To and References headers reference unique Message IDs, which Re:amaze uses to accurately locate and thread conversations.
The Thread-Topic header does not contain unique identifiers, which is why it is used as a last resort. When subject line matching is used, archived and spam conversations are excluded. However, if an incoming email includes a matching reply prefix such as Re:, Re:amaze will reopen and thread the response in the corresponding archived conversation.

Supported reply prefixes

Re:amaze recognizes the following English reply prefixes and abbreviations:

  • Re:
  • RE:
  • fw:
  • FW:
  • FWD

Re:amaze also recognizes the following non-English reply prefixes and abbreviations:

Language RE FW
Arabic رد إعادة توجيه
Simplified Chinese 回复 转发
Traditional Chinese 回覆 轉寄
Danish SV (Svar) VS (Videresendt)
Dutch Antw (Antwoord) Doorst (Doorsturen)
Finnish VS (Vastaus) VL (Välitetty)
French REF (Référence) or RE (Réponse) in Canada TR (Transfert)
German AW (Antwort) WG (Weitergeleitet)
Greek ΑΠ (Απάντηση) or ΣΧΕΤ (Σχετικό) ΠΡΘ (Προωθημένο)
Hebrew השב or תשובה הועבר or העברה
Hungarian Vá (Válasz) Továbbítás
Italian R or RIF (Riferimento) I (Inoltro)
Icelandic SV (Svara) FS (Framsenda)
Latvian BLS (Balas) TRS (Terusan)
Norwegian Atb. (Atbilde) Pārs. (Pārsūtīts)
Swedish SV (Svar) VB (Vidarebefordrat)
Spanish RE (Respuesta) RV (Reenviado)
Portuguese RES (Resposta) ENC (Encaminhado)
Polish Odp (Odpowiedź) PD (Podaj dalej)
Tamil பதில் முன்னனுப்பு
Turkish YNT (Yanıt) İLT (İlet)
Welsh ATB (Ateb) YML (Ymlaen)

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