https://datatracker.ietf.org/doc/draft-ietf-imapapnd-rfc2088bis/email/
Email expansions for draft-ietf-imapapnd-rfc2088bis-04
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https://mailarchive.ietf.org/arch/msg/imapext/6NryWduImi91_fmN-KFMh6OZXeU/
Re: [imapext] WGLC for draft-ietf-imapapnd-rfc2088bis-02
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