What you unlock
Send and reply to emails
Compose new emails, reply to threads, and forward messages — all from within Mantle.
Inbox management
Read, search, label, archive, and trash messages without leaving the workspace.
Draft and template workflow
Create, update, and send drafts so agents can prepare emails for your review before sending.
New-message trigger
Start an agent task automatically every time a new email arrives in the connected inbox.
Connect Gmail
1
Open Settings → Integrations
In any workspace go to Settings → Integrations and select Gmail.
2
Authorize with Google
Click Connect and sign in with your Google account. Grant the requested permissions so Mantle can read and send
email on your behalf.
3
Add Gmail to an agent
Open the agent and enable only the Gmail actions it needs. A shared agent does not share your Gmail sign-in with
other members.
Agent tools
Sending
Drafts
Reading and search
Organization
Triggers
Triggers fire an agent task automatically when something happens in Gmail.1
Create a task with a Gmail trigger
Open any agent, go to the Tasks tab, and add a new task. In the trigger picker, choose Integration → Gmail.
2
Select the event
Choose New Gmail Message Received.
3
Save and activate
Save the task. The agent will run automatically each time a new email arrives.
Example use cases
Auto-reply to customer inquiries
Auto-reply to customer inquiries
Trigger: New Gmail message receivedWhen a new email lands in your inbox, an agent reads the subject and body, classifies the inquiry, drafts a personalized response, and saves it as a draft for your review.
Forward invoices to your accounting channel
Forward invoices to your accounting channel
Trigger: New Gmail message receivedAn agent watches for emails with PDF attachments from known vendors, downloads the attachment, and posts a summary with the file to your #accounting channel.
Summarize a long email thread on demand
Summarize a long email thread on demand
Ask your agent to fetch a specific email thread, summarize the key points and action items, and post the summary in your workspace chat.
Troubleshooting
Google shows an unverified-app warning
Google shows an unverified-app warning
Do not bypass a warning you did not expect. Cancel the connection and contact Mantle
support so the team can confirm the correct sign-in flow.
The agent can read emails but can't send
The agent can read emails but can't send
Check that the Gmail OAuth scope includes send permissions. Disconnect and reconnect the integration from Settings
→ Integrations → Gmail to re-authorize with full scopes.
Trigger tasks aren't firing
Trigger tasks aren't firing
A new-message event may take a short time to arrive. Confirm the task is active and that the trigger is set to
Gmail → New Gmail Message Received. Then check the task history for a connection or permission error.
Emails are landing in the recipient's spam folder
Emails are landing in the recipient's spam folder
This is controlled by the recipient’s email provider, not Mantle. Avoid spammy subject lines and ensure your Google
account has a good sending reputation.
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