List all connected-user signatures or retrieve one signature by ID.

Retrieves all Zoho Mail accounts associated with the authenticated user. Returns account details including accountId (required for other mail operations), email addresses, storage information, account status, user preferences, and security settings. Use this action first to get the accountId needed for subsequent mailbox, message, folder, and email operations. The accountId is a unique identifier for each mail account. Typical workflow: List accounts → Get accountId → Use accountId in other mail operations.

Update the display name of a Zoho Mail account owned by the user.

Delete a label and remove it from associated Zoho Mail messages.

Tool to perform domain operations like verify, set primary domain, hosting, aliases, MX/SPF checks, DKIM management, and notifications. Use after creating or retrieving a domain.

Create a folder in a Zoho Mail account and return its folder record.

Delete a folder from a Zoho Mail account. The first delete moves the folder to Trash; deleting it again from Trash removes it permanently.

Retrieve one Zoho Mail folder by account and folder ID.

List every folder in a Zoho Mail account. Use the returned folder IDs for message listing, attachment, content, and header operations that require a folder identifier.

Update a Zoho Mail folder and return its observed saved state.

Tool to retrieve all personal bookmarks from a Zoho Mail account. Use when you need to fetch saved bookmarks/links with support for pagination and field filtering.

Delete multiple groups in a single API call. This action permanently removes the specified groups from your Zoho Mail organization. Use this when you need to: - Remove multiple obsolete or unused groups at once - Clean up groups after organizational restructuring - Batch delete groups for administrative purposes Note: Deleted groups cannot be recovered. Ensure you have the correct group IDs before deletion.

Tool to delete a specific mail group by its zgid. Use when you need to remove a group from your organization after confirming the IDs.

Retrieve one Zoho Mail organization group, including members and settings.

List messages held for moderation in one Zoho Mail organization group.

List or search emails held for moderation in a Zoho Mail group.

Release held group messages for delivery or permanently reject them.

Create a label in a Zoho Mail account and return its identifiers.

List every label configured in a Zoho Mail account.

List one offset-paginated page of accounts managed by a Zoho organization.

List mail domains configured for a Zoho Mail organization.

Tool to create and save an email draft in Zoho Mail without sending it. Use when composing emails that need to be saved for later editing or sending.

Move one Zoho Mail email to trash or permanently delete it.

Download one attachment from a Zoho Mail message as a file.

Get normal and optional inline attachment metadata for one message.

Tool to retrieve the full content/body of a specific Zoho Mail email. Use when you need to fetch the complete email content after listing or searching messages, as list/search endpoints typically return only metadata/summary.

Get one email's internet message headers without flattening repeated values.

Retrieve one email's complete metadata record by account, folder, and message ID.

Tool to retrieve a list of emails from a Zoho Mail account folder. Use when you need to fetch emails from inbox or specific folder, with support for filtering by read status, attachments, flags, and pagination.

Tool to reply to an existing email via Zoho Mail API. Use when you need to send a reply to a received email message, maintaining email threading.

Tool to send an email via Zoho Mail API. Use when you need to send emails immediately to recipients.

Update the state, folder, flag, or labels of Zoho Mail messages.

Batch-update message or thread read, folder, flag, label, archive, or spam state.

Upload one file without sending an email and return its Zoho metadata.

Upload files to Zoho Mail's temporary attachment store without sending.

Tool to retrieve storage details for a specific user in the organization. Use when you need to know a user’s total and used storage quotas.

Tool to update organization spam processing type. Use when changing the spam filtering strategy for an organization.

Updates a user's storage allocation within a Zoho Mail organization. Can modify either base storage plan or extra storage add-ons. Use this when you need to: - Change a user's base storage plan (e.g., from basic to mailPremium) - Add or modify extra storage add-ons for a user Prerequisites: You must have valid zoid (organization ID) and zuid (user ID) before calling this action.

Tool to search emails in a Zoho Mail account using Zoho's searchKey syntax. Use when you need to find specific emails by sender, subject, keywords, status (e.g., unread), attachments, or flags. Returns messageId and folderId needed to fetch full message content.

Create a task in a Zoho Mail group.

Create a personal task for the connected Zoho Mail user.

List one offset-paginated page of personal tasks for the connected Zoho Mail user. Use from_index and limit to retrieve additional pages.

Update one documented field on a task in a Zoho Mail group.

Tool to update group settings. Use after group creation to adjust general or text settings.

Enable or disable an external account, or update incoming, outgoing, IMAP, POP, or ActiveSync status for an organization-managed mailbox.