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2.2. Mailbox & Sending (Inbox & Compose)

This feature lets you exchange email with trade counterparties or stakeholders directly within TFlow. You can attach project documents and send them without opening an external client (Outlook, Gmail).

💬 Try asking Lyra

  • "Summarize this email"
  • "Find important emails"
  • "Open the email compose screen"

For more details: Lyra Interactive Features Guide

⚠️ To send email, you must have completed Email Integration and Settings in advance.

1. Using the Inbox

✨ UPDATED (2026-07) — The email screens now use a shell layout with a persistent folder sidebar. Not only the mail list but also the detail and compose screens keep the folder sidebar (Inbox · Starred · Sent · Drafts · Spam · AI Review · categories · accounts) on the left, so you can click a folder to jump there from any screen.

  • Folder sidebar: Move between Inbox, Starred, Sent, Drafts, Spam, and AI Review folders, plus categories and connected accounts, from the sidebar. Mail counts are shown per folder.
  • Unread badge: The email menu in the left main sidebar shows the number of unread emails as a badge. When new mail arrives, the number updates in real time.
  • View the list: In the left Emails > Inbox menu, review mail received in your connected account.
  • Categorize and filter: Filter by Unread, Starred (important), Mapped (linked to a project), and more.
  • View details: Click a mail to read the body and identify what the AI should analyze (whether documents are included). Clicking another folder from the detail screen returns you to that folder's list.

Mailbox list screen

2. Sending Mail (Compose / Reply)

  • Compose new mail: Click the Compose button to open a new window. Enter the recipient (To), CC, and BCC.
  • Reply/Forward: Use the Reply or Forward button on an existing mail to respond.
  • Attach documents: You can easily attach not only files from your computer, but also B/L and P/L files from your TFlow project documents vault, either as a link (URL) or as the actual file.
  • Signature: In the settings area, you can create an HTML signature template (including your logo) that is fixed to the bottom of your outgoing mail.

Email compose screen

2-1. Sending Troubleshooting (FAQ)

  • Q: "A message says email sending failed."
    • Error code/symptom: SMTP_SEND_FAILED, ATTACHMENT_SIZE_EXCEEDED
    • A: Most likely your email settings (SMTP server info) were entered incorrectly, or the attachment is too large and hit the mail server limit (usually 20MB). For very large files, we recommend copying a 'Share link' into the body instead.
  • Q: "When I reply, the previous mail history gets cut off."
    • Error code/symptom: EMAIL_REPLY_QUOTE_ERROR
    • A: Check whether you turned off the include-original (Quote) setting in the editor. You need to enable 'Include original when replying' in the settings gear at the bottom of the editor.
  • Q: "If I delete an email in the TFlow mailbox, does it also get deleted from my actual Google (Gmail) server?"
    • Error code/symptom: EMAIL_SYNC_DELETE
    • A: For Google (Gmail) integration, it uses full two-way synchronization, so deleting in TFlow also deletes it on the actual Google server. However, note that for users who connected a standard IMAP account, full two-way synchronization (emptying/deleting) is not supported due to the nature of the server communication.