> ## Documentation Index > Fetch the complete documentation index at: https://docs.r28.ai/charter/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Charter works for any HTTP API, including the user's own. The packs are examples of the result, not the limit: an API with no pack is declared the same way, following https://raw.githubusercontent.com/r28ai/charter/main/docs/.mintlify/skills/declaring-charter-tools/SKILL.md. > Charter is for agents that act in customers' accounts: every call is checked field by field before it's sent, the app says whose account each call is for, and the same declarations list what each tool can reach. https://docs.r28.ai/charter/llms.txt says what it is and lists every page. # Outlook > Read, search, send, reply to and file mail; drafts, attachments, folders, categories, rules and mailbox settings, over Microsoft Graph. 56 tools OAuth ```python outlook_example.py {11} theme={null} import asyncio from charter.auth import EnvTokenProvider from charter.packs import outlook credentials = EnvTokenProvider("MICROSOFT_ACCESS_TOKEN") outlook.configure(credentials) async def main(): unread = await outlook.messages_list.ainvoke(folder_id="inbox", filter="isRead eq false") asyncio.run(main()) ``` Fifty-six tools over one Outlook mailbox, one per Microsoft Graph v1.0 operation and named after it: `messages_update` is `PATCH /me/messages/{id}`, which is how Graph marks a message read, flags it, categorises it and edits a draft. Where an operation is served at more than one path, or takes its body in more than one format, it is still one tool — the difference is an optional argument, and the model never chooses a URL. ## Authenticating **Before the first call, Outlook needs a token from an app registered with Microsoft Entra.** Microsoft issues no API key for mail. [Register an app](https://docs.r28.ai/charter/charter/auth/apps/microsoft.md), grant it the delegated Graph permissions these tools ask for — `Mail.ReadWrite`, `Mail.Send` and `MailboxSettings.ReadWrite` cover every write — and sign in through it. To try a tool on your own mailbox first, [Graph Explorer](https://developer.microsoft.com/graph/graph-explorer) shows the signed-in account's token on its **Access token** tab; `export MICROSOFT_ACCESS_TOKEN=…`. This pack takes an OAuth bearer token, and [`configure()`](https://docs.r28.ai/charter/charter/reference/configuration#configure) is optional when `$MICROSOFT_ACCESS_TOKEN` is set. Which credential provider you hand it depends on whose account the calls run as. ### A token you hold For a script, or a notebook. [`EnvTokenProvider`](https://docs.r28.ai/charter/charter/reference/credentials#envtokenprovider) re-reads the variable on every call, so a token rotated beside the process is picked up without a restart; [`StaticTokenProvider`](https://docs.r28.ai/charter/charter/reference/credentials#statictokenprovider) takes one you already hold as a string. Neither renews anything, so the calls stop when the token expires. ```python outlook_script.py {4} theme={null} from charter.auth import EnvTokenProvider from charter.packs import outlook credentials = EnvTokenProvider("MICROSOFT_ACCESS_TOKEN") outlook.configure(credentials) ``` ### One account, refreshed For an agent or a server acting as you. [`OAuth2Client`](https://docs.r28.ai/charter/charter/reference/oauth#oauth2client) turns a client registration and a stored refresh token into an access token, and [renews it](https://docs.r28.ai/charter/charter/auth/authorization-servers.md#what-the-cache-does-precisely) before it lapses. ```python outlook_agent.py {8} theme={null} from charter.auth import OAuth2Client from charter.packs import outlook credentials = OAuth2Client( MICROSOFT, client_id=os.environ["MICROSOFT_CLIENT_ID"], client_secret=os.environ["MICROSOFT_CLIENT_SECRET"], refresh_token=os.environ["MICROSOFT_REFRESH_TOKEN"], ) outlook.configure(credentials) ``` > [!NOTE] > > No refresh token yet? [Getting the grant](https://docs.r28.ai/charter/charter/auth/oauth-flow.md) is the one-time consent flow that hands you one. ### Many end users For a product whose users each connect their own account. [`SubjectProvider`](https://docs.r28.ai/charter/charter/reference/credentials#subjectprovider) builds one credential per user through a factory you write, and [`use_subject`](https://docs.r28.ai/charter/charter/reference/credentials#use_subject) names the user a call acts for. [Your users' accounts](https://docs.r28.ai/charter/charter/auth/oauth-flow.md) is the consent route inside your app; [serving many users](https://docs.r28.ai/charter/charter/auth/authorization-servers.md#serving-many-users) is the per-subject cache and its eviction. The client is handed a function that reads the stored grant, not a copy of the refresh token. A server runs several workers, and a copy goes stale the first time another worker refreshes: [More than one process](https://docs.r28.ai/charter/charter/auth/oauth-flow.md#more-than-one-process). ```python outlook_server.py {24,28} theme={null} from functools import partial from charter.auth import OAuth2Client, SubjectProvider, TokenGrant, use_subject from charter.packs import outlook # Yours to write: a user id in, that user's credential out. async def for_user(user_id: str) -> OAuth2Client: async def stored_grant() -> TokenGrant: # read again whenever the token is due row = await db.grants.get(user_id, "microsoft") return TokenGrant( access_token=row.access_token, refresh_token=row.refresh_token, expires_at=row.expires_at, ) return OAuth2Client( MICROSOFT, client_id=os.environ["MICROSOFT_CLIENT_ID"], client_secret=os.environ["MICROSOFT_CLIENT_SECRET"], refresh_token=stored_grant, on_refresh=partial(save_to_db, user_id), ) credentials = SubjectProvider(for_user) outlook.configure(credentials) # Per request: whose grant the tools use. with use_subject(request.user_id): ... # your agent runs here ``` The token is a delegated one: the tools act as the signed-in user, on `/me`. Microsoft's authorization server publishes its metadata, so the `MICROSOFT` constant the snippets above name is one call — [`OAuth2Server.discover`](https://docs.r28.ai/charter/charter/auth/authorization-servers) against `https://login.microsoftonline.com/{tenant}/v2.0`. Ask for `offline_access` beside the Graph scopes, or Microsoft issues no refresh token. ## The client > [!NOTE] > > [`oauth_tool_factory`](https://docs.r28.ai/charter/charter/reference/factories#oauth_tool_factory) is the whole client: a thin wrapper over `httpx` that attaches your token and these endpoint constants to each request. No vendor SDK enters your dependency tree. ```python Without the pack theme={null} from charter import oauth_tool_factory from charter.auth import ScopeRefusal outlook_api_client = oauth_tool_factory( base_url="https://graph.microsoft.com/v1.0/", provider="microsoft", credential_provider=credentials, pack="outlook", body_format="json", query_format="repeat", body_case="camel", query_case="camel", path_case="snake", static_headers={ "Prefer": "outlook.body-content-type=\"text\"", }, # this API reports failure with an HTTP status code envelope=None, scope_refusals=[ ScopeRefusal( status=403, signal=r"\"code\"\s*:\s*\"ErrorAccessDenied\"", ), ], ) ``` ```python With the pack theme={null} from charter.packs import outlook outlook.configure(credentials) # The base URL, the casing, the envelope and the pagination are # already declared. 56 tools, ready to hand to a model: tools = outlook.TOOLS ``` `credentials` is whichever of the three you built in [Authenticating](#authenticating). A pack takes it through [`configure()`](https://docs.r28.ai/charter/charter/reference/configuration#configure); a client you build takes the same object as `credential_provider`, and has no `configure()` of its own. ### Paging through a list A cursor belongs to the tool that returns it, so it is declared on that tool's builder call: ```python outlook_pagination.py theme={null} messages_list = outlook_api_client( name="messages_list", args_schema=MessagesListRequest, method="GET", url_template=( "me/mailFolders/{folder_id}/messages", "me/messages", ), pagination=Pagination( cursor_field="next_link", cursor_param="next_link", ), ) ``` > [!NOTE] > > Pagination is declared on `messages_list`, `messages_delta`, `attachments_list`, `mail_folders_list` and `mail_folders_delta`. The other 51 take no cursor. ## Tools Each is a [`Tool`](https://docs.r28.ai/charter/charter/reference/tool), called with [`ainvoke`](https://docs.r28.ai/charter/charter/reference/tool#tool-ainvoke) as in the snippet above. The name links to its parameters, its response and what it costs. Messages [messages\_listGET List or search messages, across the mailbox or in one folder (an ID, or a well-known name such as inbox or sentitems).](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_list.md) [messages\_getGET Read one message: sender, recipients, subject, date and the body as plain text.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_get.md) [messages\_get\_contentGET Get a message's MIME content as text: every header, and each body part as encoded on the wire.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_get_content.md) [messages\_deltaGET Track changes to the messages in one folder.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_delta.md) [messages\_createPOST Save a new draft, in Drafts unless folder\_id names another folder, as a JSON message or as MIME. messages\_send sends it later.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_create.md) [messages\_updatePATCH Change some of a message's properties, leaving the rest: isRead, flag, importance, categories, and on a draft its recipients, subject and body.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_update.md) [messages\_deleteDELETE Delete a message or a draft.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_delete.md) [messages\_permanent\_deletePOST Permanently delete a message.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_permanent_delete.md) [messages\_movePOST Move a message to another folder — archive, deleteditems, or any folder ID.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_move.md) [messages\_copyPOST Copy a message into another folder, by folder ID or well-known name.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_copy.md) [messages\_sendPOST Send a saved draft — a new message, reply, reply-all or forward draft.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_send.md) [messages\_replyPOST Reply to the sender of a message right away.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_reply.md) [messages\_reply\_allPOST Reply to the sender and every recipient of a message right away, as JSON or MIME.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_reply_all.md) [messages\_forwardPOST Forward a message right away.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_forward.md) [messages\_create\_replyPOST Create a draft reply to the sender of a message, to edit with messages\_update and send with messages\_send.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_create_reply.md) [messages\_create\_reply\_allPOST Create a draft reply to the sender and every recipient of a message.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_create_reply_all.md) [messages\_create\_forwardPOST Create a draft forward of a message, to edit and send later.](https://docs.r28.ai/charter/charter/packs/outlook/messages/messages_create_forward.md) [send\_mailPOST Send a new email right away, as a JSON message or as MIME.](https://docs.r28.ai/charter/charter/packs/outlook/messages/send_mail.md) Attachments [attachments\_listGET List a message's attachments: name, type, size and id, without the contents.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_list.md) [attachments\_getGET Read one attachment.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_get.md) [attachments\_get\_contentGET Get an attachment's raw contents: a file's bytes (as text when they are text, otherwise base64), or an attached message's MIME.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_get_content.md) [attachments\_createPOST Attach a file (under 3 MB) or a message to a draft.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_create.md) [attachments\_create\_upload\_sessionPOST Start attaching a file of 3 MB to 150 MB to a draft: returns the uploadUrl the file's bytes are then PUT to, in ranges of up to 4 MB, before expirationDateTime.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_create_upload_session.md) [attachments\_deleteDELETE Delete an attachment from a message or a draft.](https://docs.r28.ai/charter/charter/packs/outlook/attachments/attachments_delete.md) Folders [mail\_folders\_listGET List the folders under the mailbox root, or under parent\_folder\_id, with their unread and total counts.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_list.md) [mail\_folders\_getGET Read one folder, by ID or well-known name, with its unread and total counts.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_get.md) [mail\_folders\_createPOST Create a folder under the root or under parent\_folder\_id, or a search folder — a saved filter over folders you name.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_create.md) [mail\_folders\_updatePATCH Rename a folder or set its extended properties, or change a search folder's source folders or filter.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_update.md) [mail\_folders\_deleteDELETE Delete a folder, or a search folder, and what is in it.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_delete.md) [mail\_folders\_permanent\_deletePOST Permanently delete a folder and remove its items from the mailbox.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_permanent_delete.md) [mail\_folders\_movePOST Move a folder and everything in it into another folder.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_move.md) [mail\_folders\_copyPOST Copy a folder and everything in it into another folder.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_copy.md) [mail\_folders\_deltaGET Track changes to the mailbox's folders.](https://docs.r28.ai/charter/charter/packs/outlook/folders/mail_folders_delta.md) Categories [master\_categories\_listGET List the categories defined for the mailbox, with their colors.](https://docs.r28.ai/charter/charter/packs/outlook/categories/master_categories_list.md) [master\_categories\_getGET Read one category.](https://docs.r28.ai/charter/charter/packs/outlook/categories/master_categories_get.md) [master\_categories\_createPOST Create a category.](https://docs.r28.ai/charter/charter/packs/outlook/categories/master_categories_create.md) [master\_categories\_updatePATCH Change a category's color.](https://docs.r28.ai/charter/charter/packs/outlook/categories/master_categories_update.md) [master\_categories\_deleteDELETE Delete a category from the mailbox's list.](https://docs.r28.ai/charter/charter/packs/outlook/categories/master_categories_delete.md) Inbox rules [message\_rules\_listGET List the Inbox rules, in the order they run.](https://docs.r28.ai/charter/charter/packs/outlook/rules/message_rules_list.md) [message\_rules\_getGET Read one Inbox rule: its conditions, exceptions and actions.](https://docs.r28.ai/charter/charter/packs/outlook/rules/message_rules_get.md) [message\_rules\_createPOST Create an Inbox rule: when an incoming message meets the conditions, and none of the exceptions, Outlook takes the actions.](https://docs.r28.ai/charter/charter/packs/outlook/rules/message_rules_create.md) [message\_rules\_updatePATCH Change some of an Inbox rule's properties, leaving the rest as they are.](https://docs.r28.ai/charter/charter/packs/outlook/rules/message_rules_update.md) [message\_rules\_deleteDELETE Delete an Inbox rule.](https://docs.r28.ai/charter/charter/packs/outlook/rules/message_rules_delete.md) Mailbox settings [mailbox\_settings\_getGET Read the mailbox's settings: automatic replies (out of office), time zone, working hours, language, and date and time formats.](https://docs.r28.ai/charter/charter/packs/outlook/settings/mailbox_settings_get.md) [mailbox\_settings\_updatePATCH Change some of the mailbox's settings, leaving the rest: automatic replies, time zone, working hours, language, formats.](https://docs.r28.ai/charter/charter/packs/outlook/settings/mailbox_settings_update.md) [supported\_languagesGET List the languages and locales the user's mailbox server supports.](https://docs.r28.ai/charter/charter/packs/outlook/settings/supported_languages.md) [supported\_time\_zonesGET List the time zones the user's mailbox server supports, as Windows or IANA names.](https://docs.r28.ai/charter/charter/packs/outlook/settings/supported_time_zones.md) [inference\_overrides\_listGET List the senders whose mail is always sorted into Focused or Other.](https://docs.r28.ai/charter/charter/packs/outlook/settings/inference_overrides_list.md) Focused Inbox [inference\_overrides\_createPOST Always sort a sender's future mail into Focused or Other.](https://docs.r28.ai/charter/charter/packs/outlook/focused_inbox/inference_overrides_create.md) [inference\_overrides\_updatePATCH Switch an override between Focused and Other.](https://docs.r28.ai/charter/charter/packs/outlook/focused_inbox/inference_overrides_update.md) [inference\_overrides\_deleteDELETE Remove an override, so the sender's mail is sorted automatically again.](https://docs.r28.ai/charter/charter/packs/outlook/focused_inbox/inference_overrides_delete.md) Extensions and extended properties [extensions\_getGET Read an open extension — an app's own named data — stored on a message.](https://docs.r28.ai/charter/charter/packs/outlook/extensions/extensions_get.md) [extensions\_createPOST Store an open extension on a message: an extensionName and any custom name-value pairs of primitive values or arrays of them.](https://docs.r28.ai/charter/charter/packs/outlook/extensions/extensions_create.md) [extensions\_deleteDELETE Delete an open extension from a message.](https://docs.r28.ai/charter/charter/packs/outlook/extensions/extensions_delete.md) MailTips and IDs [get\_mail\_tipsPOST Check recipients before sending: automatic replies, full mailboxes, delivery restrictions, moderation, external recipients and distribution-list sizes.](https://docs.r28.ai/charter/charter/packs/outlook/other/get_mail_tips.md) [translate\_exchange\_idsPOST Convert up to 1,000 Outlook item IDs from one format to another — for example from restId to the immutable restImmutableEntryId, which survives a move.](https://docs.r28.ai/charter/charter/packs/outlook/other/translate_exchange_ids.md) ## One operation, one tool **Several paths.** Graph lists messages at `/me/messages` and at `/me/mailFolders/{id}/messages`, and folders at the root and under a parent's `childFolders`. Each is one tool: `messages_list(folder_id=...)`, `mail_folders_list(parent_folder_id=...)`, `messages_create(folder_id=...)`, `mail_folders_create(parent_folder_id=...)`. Leave the scope out for the wider route. The routes are declared on the tool, most specific first, and the runtime calls the first one the arguments fill — see [routes](https://docs.r28.ai/charter/charter/tools/wire-contract.md#routes). **Two body formats.** `send_mail`, `messages_create` and the reply, reply-all and forward operations take a JSON message *or* a MIME document. Fill `message` (and `comment`, `toRecipients`) for JSON, or `mime` with an [`EmailContent`](https://docs.r28.ai/charter/charter/reference/semantic-types#emailcontent) for MIME, which [`Format("mime_base64")`](https://docs.r28.ai/charter/charter/reference/transforms#built-in-transforms) builds and encodes in standard base64 — padded, with `+` and `/`, the alphabet Graph decodes. `mime` is [`Body(media_type="text/plain")`](https://docs.r28.ai/charter/charter/tools/wire-contract#a-body-in-another-media-type): set, it is the whole body and the JSON arguments are refused beside it. **Narrower tools are a projection.** A deployment that wants an action-sized tool derives one: ```python outlook_mark_read.py theme={null} mark_read = outlook.messages_update.derived( name="mark_read", keep={"message_id", "message.is_read"} ) ``` The model then sees `messageId` and `isRead`, and nothing else of the message. ## What crosses the boundary ### On the way out A file attachment's `contentBytes` takes the file's text, and is base64-encoded on the way out. Its description says "base64-encoded contents", which is Graph's wire format; a [`Gloss`](https://docs.r28.ai/charter/charter/reference/markers#gloss) tells the model not to encode it twice. ### On the way back Graph wraps every object in envelope keys and every recipient twice. The response handlers drop `@odata.context`, `@odata.etag`, `changeKey` and `conversationIndex`, and flatten each recipient to `Name
`. `messages_list` leaves each message's full `body` out — `bodyPreview` carries the first 255 characters, and a selected `uniqueBody` stays, which is the way to read a thread: `filter="conversationId eq '…'"`, `select="from,receivedDateTime,uniqueBody"`. `messages_get` and `messages_list` ask Graph for bodies as plain text (`Prefer: outlook.body-content-type="text"`). A host that wants the HTML — to edit a draft in its own formatting — passes `headers={"Prefer": 'outlook.body-content-type="html"'}` to `ainvoke`, which applies last. An attachment is decoded only when it is text, and strictly. A binary file is reported by name, type and size, and `attachments_get_content` hands over its bytes. ## Paging Graph answers a long collection with `@odata.nextLink`, the whole URL of the next page, and Microsoft is explicit that the `$skip` or `$skiptoken` inside it is not for extracting. So the handlers return it as `next_link`, every paging tool takes it back under that name, and the tool sends the link's own query string in place of the parameters it would otherwise build. The link also says which collection it is a page of — `mailFolders('drafts')` — and that is a path parameter, not part of the query. So the tool takes the folder from the link too: a `next_link` passed on its own stays in its folder, and one passed beside a different `folder_id` follows the link. The link's path is matched against the tool's own routes and one that matches none is refused, so a rewritten link can change which page of which folder, never which endpoint. ```python outlook_paging.py theme={null} args = {"folder_id": "inbox", "top": 50} page = await outlook.messages_list.ainvoke(args) while (args := outlook.messages_list.pagination.next_page_args(page, args)) is not None: page = await outlook.messages_list.ainvoke(args) ``` `messages_delta` and `mail_folders_delta` end a round with `delta_link` instead. Keep it, and pass it as `next_link` later: the next round returns only what was created, updated or removed since. `messages_delta` sizes its pages with `max_page_size`, which is Graph's `Prefer: odata.maxpagesize` header, and does not offer `$top`. Graph lists `$top` among the options delta supports, but on a delta round it ends the round: `$top=2` on a folder of twelve messages returned two and a `delta_link`, the next round returned nothing, and the other ten were never delivered. ## Gotchas > **Delete does not go to Deleted Items** > > `messages_delete` (`DELETE /me/messages/{id}`) skips Deleted Items: the message > lands in Recoverable Items (`recoverableitemsdeletions`), where Outlook keeps it > for the retention period. A folder deleted with `mail_folders_delete` does not > appear in Deleted Items either. To put either there, move it: `messages_move` > or `mail_folders_move` to `deleteditems`. `messages_permanent_delete` calls > Graph's `permanentDelete` action, after which Outlook clients cannot reach the > message, and a folder deleted with `mail_folders_permanent_delete` is removed > outright, not kept in the purges folder. > **Some query options are accepted and ignored** > > Graph takes `$select` on mailbox settings, `$filter` on the category list, and > `$top` and `$filter` on a message's attachments without complaint, and returns > everything anyway. Those tools do not offer them, because a model handed the > whole collection reads it as the subset it asked for. The rule list takes > `$filter`, but most rule properties refuse it with a 400 (`isEnabled`, > `sequence`); with a handful of rules, list them all. > **A moved message has a new id** > > `messages_move` returns the message in its new folder, under a new id. An id > saved before the move no longer finds it. `translate_exchange_ids` converts to > `restImmutableEntryId`, which survives a move. > **\$search wants its query in double quotes** > > `search` takes `"pizza"` or `"from:ada subject:invoice"`, quotes included, and > the call is refused locally without them. It returns at most 1,000 matches, > most recently sent first. > **Filtering and sorting at once has three rules** > > Graph refuses a `$filter` beside an `$orderby` unless every sorted property is > filtered on, in the same order, ahead of the others — `InefficientFilter`. > Newest first with a filter is `orderby="receivedDateTime desc"` and a filter > that starts `receivedDateTime ge 1900-01-01T00:00:00Z and …`. > **Extended properties live on the item** > > There is no endpoint for one. Write them through `messages_update` or > `mail_folders_update` (`singleValueExtendedProperties`), and read them with > `expand="singleValueExtendedProperties($filter=id eq '…')"` on `messages_get` > or `mail_folders_get`. > **A large attachment is two steps, and the second is yours** > > `attachments_create_upload_session` returns the session's `uploadUrl`. The > file's bytes go to that URL in `PUT`s of up to 4 MB, which a model has no bytes > to make; the host does that part. ## Related * [Microsoft Graph mail API overview](https://learn.microsoft.com/en-us/graph/api/resources/mail-api-overview?view=graph-rest-1.0) * [Throttling limits for Outlook](https://learn.microsoft.com/en-us/graph/throttling-limits#outlook-service-limits) * [Gmail](https://docs.r28.ai/charter/charter/packs/gmail.md), the same job against Google's API This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.