@lgriffin/esi.ts - EVE Online ESI API Client - v12.3.0
    Preparing search index...

    Type Alias PostUiOpenwindowNewmailBody

    type PostUiOpenwindowNewmailBody = {
        body: string;
        recipients: readonly number[];
        subject: string;
        to_corp_or_alliance_id?: number;
        to_mailing_list_id?: number;
    }
    Index
    body: string
    recipients: readonly number[]
    subject: string
    to_corp_or_alliance_id?: number
    to_mailing_list_id?: number

    Corporations, alliances and mailing lists are all types of mailing groups. You may only send to one mailing group, at a time, so you may fill out either this field or the to_corp_or_alliance_ids field