# Using the WebUI — mail rooms in channels (Gmail / Outlook)

**Any screen not listed here does not exist.** Headings quote the screen's own wording.

**Part of the channels guide. Other topics:**
channels, the unified chat, its rooms, AI labels, and 「AI アクセス」: `references/webui-workspace-channels.md`;
「AI の返信」 in channel rooms: `references/webui-workspace-channels-ai-reply.md`;
conversations, the input box, and sign-in: `references/webui.md`;
documents, files, tables, memory, channels, and apps: `references/webui-workspace.md`;
editing a file in place (「編集」): `references/webui-file-edit.md`;
SIROE pages, blocks, and boards: `references/webui-siroe.md`;
settings, administration, models, and triggers: `references/webui-settings.md`;
external service connections: `references/webui-connections.md`;
`/office`: `references/webui-office.md`;
`/meetings`: `references/webui-meetings.md`;
`/calendar`: `references/webui-calendar.md`.

## 「ワークスペース」 — mail rooms

| Where | What you can do |
| --- | --- |
| `/channels` — a Gmail or Outlook room | **Mail (Gmail / Outlook, 「自分のアカウントをつなぐ」)**: the left column shows a 「Gmail」 or 「Outlook メール」 tag and a 「自分のアカウントをつなぐ」 button; the sheet has a 「メール」 and a 「カレンダー」 section. The 「メール」 section connects **your own Gmail or Outlook** through a **connection you authorized yourself (private) in `/settings/connections`** — the sheet lists each such connection by name with 「この Gmail をつなぐ」 or 「この Outlook をつなぐ」; with none it shows only the link 「連携の画面で Gmail か Outlook をつなぐ」. **Which mail becomes a room is chosen per mailbox** with 「取り込むメール」 on its row under 「つないでいるメール」: Gmail offers 「メイン」 「プロモーション」 「ソーシャル」 「新着」 「フォーラム」 「迷惑メール」, Outlook offers 「優先」 「その他」 「迷惑メール」. By default only 「メイン」 (Gmail) or 「優先」 (Outlook) is on; at least one stays checked. A change applies from the next fetch; earlier mail and existing rooms stay as they are. Trash is never brought in. The first load brings in the latest 30 threads of the last 7 days of the chosen kinds; later fetches are incremental. **Threads are grouped into one room per sender** — a company's domain, or the address for free mail and colleagues (older rooms stay per thread); each thread shows its subject, replying in a thread goes to it, and the input box replies to the latest thread (bodies are cut at 20,000 characters). **Reply goes to the sender of the latest message from someone else (its Reply-To if present), with the other To/Cc people on Cc**, under the same thread, and 宛先 / Cc / 件名 are shown above the input box before you send (sending stays off while they cannot be read); a thread with only your own messages has nobody to reply to. In Outlook, delivery-failure notices (「Undeliverable: …」, sent from Exchange's system address `MicrosoftExchange…@…`) are never the reply target, so a thread holding only your mail and such a notice has nobody to reply to either; if Outlook still refuses a reply because that kind of mail cannot be answered, it says 「このメールには返信できません。配信不能の通知など、Outlook が返信を受け付けない種類のメールです。」. If the connection's authorization lapses, or you unlink or delete it in `/settings/connections`, the left column shows a 「Gmail を再認可」 or 「Outlook メールを再認可」 link (「再認可」 under the logo on a wide screen) and the sheet says 「Gmail の再認可が要ります」 or 「Outlook メールの再認可が要ります」 with a 「再認可」 link — both open `/settings/connections`, where you authorize it again (relinking brings the mailbox back). Deleting the connection removes its rooms. 「このメールを切断します」 removes its rooms from the list (mail in Gmail or Outlook stays). |
| `/channels` — a mail room's input box, 「宛先を編集」 | **Choosing who gets the reply**: 「宛先を編集」 above the input box opens 宛先 (To), Cc, and Bcc rows. Each person is a chip with an × to remove them; type a name or address to add someone — suggestions come from the people in that thread (its From, Reply-To, To, and Cc) and the tenant's members, and any address in e-mail form can be typed directly (Enter, `,` or `;` adds it). At least one To is needed and up to 50 people in all; the same person is kept only once. 「自動の宛先に戻す」 returns to the automatic recipients. The edited recipients are kept per thread until you send or close the tab. **Outlook**: a reply's To cannot be changed (Outlook always replies to the original sender), so only Cc and Bcc can be edited (「Outlook の返信では宛先(To)を変えられません。…」). |
| `/channels` — a mail message's 「転送」 | **Forwarding one mail**: hovering a mail message shows 「転送」, which opens 「メールを転送」. Choose 宛先 / Cc / Bcc the same way (suggestions included), optionally write 「ひとこと(任意)」, and press 「転送する」 (「転送しました」). It is sent from your own address as a new mail with 「Fwd:」 on the subject: your note, your signature, a forwarded-message header (from, date, subject, to), then the original text. **Attachments and HTML formatting are not forwarded** — the text only. **Outlook forwards to one To only**; put anyone else in Cc or Bcc. A forward does not appear in the room. |
| 「自分のアカウントをつなぐ」 → 「つないでいるメール」 → 「署名」 | **Signature**: each connected mailbox has its own 「署名」 (up to 1,000 characters; 「署名を保存」). It is added at the end of every reply and forward from that mailbox, after one blank line; empty means none. The input box shows 「署名を付けて送ります」 with its first line and a 「署名を変更」 link to this sheet. Gmail's or Outlook's own signature is not read, and the signature is not shown in the sent message's row in the room. |