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Supported Features

Account Deletion Account Deactivation

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How to Log In to Mail Dealer

Go to the Mail Dealer login page and log in with your email address and password.
External authentication accounts such as Google or SSO cannot be used for integration. For details, please see [Restrictions] Integration failure due to Google authentication or SSO external authentication accounts.
Mail Dealer login screen Mail Dealer login form

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Prerequisites

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Obtaining Your Workspace Key

Part of the URL serves as your workspace key. Retrieve it as follows: https://{workspace-key}.maildealer.jp/ Workspace key confirmation

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Integration Setup

In the MoneyForward Admina integration screen, search for Mail Dealer. Admina integration search Enter the workspace key you obtained, along with the email address and password used to log in to Mail Dealer, then click Connect. Mail Dealer integration settings Once the integration with Mail Dealer is successful, the registered user information will appear in the account list. If the process does not complete successfully, click Edit from the Status tab on the integration screen and try connecting again. If the issue persists, please contact us via chat. For an overview of the Mail Dealer integration, please see the integration page.
Last modified on June 18, 2026