feat(core): Add "Sent by n8n" attribution (#7183)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: Giulio Andreini <g.andreini@gmail.com>

packages/core/src/NodeExecuteFunctions.ts

@@ -143,7 +143,7 @@ import {
 	setWorkflowExecutionMetadata,
 } from './WorkflowExecutionMetadata';
 import { getSecretsProxy } from './Secrets';
-import { getUserN8nFolderPath } from './UserSettings';
+import { getUserN8nFolderPath, getInstanceId } from './UserSettings';
 import Container from 'typedi';
 import type { BinaryData } from './BinaryData/types';
 
@@ -2506,6 +2506,7 @@ const getCommonWorkflowFunctions = (
 
 	getRestApiUrl: () => additionalData.restApiUrl,
 	getInstanceBaseUrl: () => additionalData.instanceBaseUrl,
+	getInstanceId: async () => getInstanceId(),
 	getTimezone: () => getTimezone(workflow, additionalData),
 
 	prepareOutputData: async (outputData) => [outputData],

packages/editor-ui/src/constants.ts

@@ -103,6 +103,7 @@ export const FILTER_NODE_TYPE = 'n8n-nodes-base.filter';
 export const FUNCTION_NODE_TYPE = 'n8n-nodes-base.function';
 export const GITHUB_TRIGGER_NODE_TYPE = 'n8n-nodes-base.githubTrigger';
 export const GIT_NODE_TYPE = 'n8n-nodes-base.git';
+export const GOOGLE_GMAIL_NODE_TYPE = 'n8n-nodes-base.gmail';
 export const GOOGLE_SHEETS_NODE_TYPE = 'n8n-nodes-base.googleSheets';
 export const ERROR_TRIGGER_NODE_TYPE = 'n8n-nodes-base.errorTrigger';
 export const ELASTIC_SECURITY_NODE_TYPE = 'n8n-nodes-base.elasticSecurity';
@@ -136,6 +137,7 @@ export const SPREADSHEET_FILE_NODE_TYPE = 'n8n-nodes-base.spreadsheetFile';
 export const SPLIT_IN_BATCHES_NODE_TYPE = 'n8n-nodes-base.splitInBatches';
 export const START_NODE_TYPE = 'n8n-nodes-base.start';
 export const SWITCH_NODE_TYPE = 'n8n-nodes-base.switch';
+export const TELEGRAM_NODE_TYPE = 'n8n-nodes-base.telegram';
 export const THE_HIVE_TRIGGER_NODE_TYPE = 'n8n-nodes-base.theHiveTrigger';
 export const QUICKBOOKS_NODE_TYPE = 'n8n-nodes-base.quickbooks';
 export const WAIT_NODE_TYPE = 'n8n-nodes-base.wait';
@@ -624,3 +626,5 @@ export const nonExistingJsonPath = '_!^&*';
 export const ASK_AI_MAX_PROMPT_LENGTH = 600;
 export const ASK_AI_MIN_PROMPT_LENGTH = 15;
 export const ASK_AI_LOADING_DURATION_MS = 12000;
+
+export const APPEND_ATTRIBUTION_DEFAULT_PATH = 'parameters.options.appendAttribution';

packages/editor-ui/src/plugins/telemetry/index.ts

@@ -7,7 +7,12 @@ import type { IUserNodesPanelSession } from './telemetry.types';
 import { useSettingsStore } from '@/stores/settings.store';
 import { useRootStore } from '@/stores/n8nRoot.store';
 import { useTelemetryStore } from '@/stores/telemetry.store';
-import { SLACK_NODE_TYPE } from '@/constants';
+import {
+	APPEND_ATTRIBUTION_DEFAULT_PATH,
+	MICROSOFT_TEAMS_NODE_TYPE,
+	SLACK_NODE_TYPE,
+	TELEGRAM_NODE_TYPE,
+} from '@/constants';
 import { usePostHog } from '@/stores/posthog.store';
 import { useNDVStore } from '@/stores';
 
@@ -230,22 +235,21 @@ export class Telemetry {
 	// so we are using this method as centralized way to track node parameters changes
 	trackNodeParametersValuesChange(nodeType: string, change: IUpdateInformation) {
 		if (this.rudderStack) {
-			switch (nodeType) {
-				case SLACK_NODE_TYPE:
-					if (change.name === 'parameters.otherOptions.includeLinkToWorkflow') {
-						this.track(
-							'User toggled n8n reference option',
-							{
-								node: nodeType,
-								toValue: change.value,
-							},
-							{ withPostHog: true },
-						);
-					}
-					break;
-
-				default:
-					break;
+			const changeNameMap: { [key: string]: string } = {
+				[SLACK_NODE_TYPE]: 'parameters.otherOptions.includeLinkToWorkflow',
+				[MICROSOFT_TEAMS_NODE_TYPE]: 'parameters.options.includeLinkToWorkflow',
+				[TELEGRAM_NODE_TYPE]: 'parameters.additionalFields.appendAttribution',
+			};
+			const changeName = changeNameMap[nodeType] || APPEND_ATTRIBUTION_DEFAULT_PATH;
+			if (change.name === changeName) {
+				this.track(
+					'User toggled n8n reference option',
+					{
+						node: nodeType,
+						toValue: change.value,
+					},
+					{ withPostHog: true },
+				);
 			}
 		}
 	}

packages/nodes-base/nodes/EmailSend/EmailSend.node.ts

@@ -11,13 +11,14 @@ export class EmailSend extends VersionedNodeType {
 			name: 'emailSend',
 			icon: 'fa:envelope',
 			group: ['output'],
-			defaultVersion: 2,
+			defaultVersion: 2.1,
 			description: 'Sends an email using SMTP protocol',
 		};
 
 		const nodeVersions: IVersionedNodeType['nodeVersions'] = {
 			1: new EmailSendV1(baseDescription),
 			2: new EmailSendV2(baseDescription),
+			2.1: new EmailSendV2(baseDescription),
 		};
 
 		super(nodeVersions, baseDescription);

packages/nodes-base/nodes/EmailSend/v2/EmailSendV2.node.ts

@@ -15,7 +15,7 @@ const versionDescription: INodeTypeDescription = {
 	name: 'emailSend',
 	icon: 'fa:envelope',
 	group: ['output'],
-	version: 2,
+	version: [2, 2.1],
 	description: 'Sends an email using SMTP protocol',
 	defaults: {
 		name: 'Send Email',

packages/nodes-base/nodes/EmailSend/v2/send.operation.ts

@@ -43,6 +43,31 @@ const properties: INodeProperties[] = [
 		placeholder: 'My subject line',
 		description: 'Subject line of the email',
 	},
+	{
+		displayName: 'Email Format',
+		name: 'emailFormat',
+		type: 'options',
+		options: [
+			{
+				name: 'Text',
+				value: 'text',
+			},
+			{
+				name: 'HTML',
+				value: 'html',
+			},
+			{
+				name: 'Both',
+				value: 'both',
+			},
+		],
+		default: 'html',
+		displayOptions: {
+			hide: {
+				'@version': [2],
+			},
+		},
+	},
 	{
 		displayName: 'Email Format',
 		name: 'emailFormat',
@@ -62,6 +87,11 @@ const properties: INodeProperties[] = [
 			},
 		],
 		default: 'text',
+		displayOptions: {
+			show: {
+				'@version': [2],
+			},
+		},
 	},
 	{
 		displayName: 'Text',
@@ -100,6 +130,15 @@ const properties: INodeProperties[] = [
 		placeholder: 'Add Option',
 		default: {},
 		options: [
+			{
+				// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+				displayName: 'Append n8n Attribution',
+				name: 'appendAttribution',
+				type: 'boolean',
+				default: true,
+				description:
+					'Whether to include the phrase “This email was sent automatically with n8n” to the end of the email',
+			},
 			{
 				displayName: 'Attachments',
 				name: 'attachments',
@@ -153,6 +192,7 @@ const displayOptions = {
 export const description = updateDisplayOptions(displayOptions, properties);
 
 type EmailSendOptions = {
+	appendAttribution?: boolean;
 	allowUnauthorizedCerts?: boolean;
 	attachments?: string;
 	ccEmail?: string;
@@ -185,6 +225,8 @@ function configureTransport(credentials: IDataObject, options: EmailSendOptions)
 
 export async function execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
 	const items = this.getInputData();
+	const nodeVersion = this.getNode().typeVersion;
+	const instanceId = await this.getInstanceId();
 
 	const returnData: INodeExecutionData[] = [];
 	let item: INodeExecutionData;
@@ -220,6 +262,32 @@ export async function execute(this: IExecuteFunctions): Promise<INodeExecutionDa
 				mailOptions.html = this.getNodeParameter('html', itemIndex, '');
 			}
 
+			let appendAttribution = options.appendAttribution;
+			if (appendAttribution === undefined) {
+				appendAttribution = nodeVersion >= 2.1;
+			}
+
+			if (appendAttribution) {
+				const attributionText = 'This email was sent automatically with ';
+				const link = `https://n8n.io/?utm_source=n8n-internal&utm_medium=powered_by&utm_campaign=${encodeURIComponent(
+					'n8n-nodes-base.emailSend',
+				)}${instanceId ? '_' + instanceId : ''}`;
+				if (emailFormat === 'html' || (emailFormat === 'both' && mailOptions.html)) {
+					mailOptions.html = `
+					${mailOptions.html}
+					<br>
+					<br>
+					---
+					<br>
+					<em>${attributionText}<a href="${link}" target="_blank">n8n</a></em>
+					`;
+				} else {
+					mailOptions.text = `${
+						mailOptions.text
+					}\n\n---\n${attributionText}n8n\n${'https://n8n.io'}`;
+				}
+			}
+
 			if (options.attachments && item.binary) {
 				const attachments = [];
 				const attachmentProperties: string[] = options.attachments

packages/nodes-base/nodes/Google/Gmail/GenericFunctions.ts

@@ -435,19 +435,43 @@ export function prepareEmailsInput(
 export function prepareEmailBody(
 	this: IExecuteFunctions | ILoadOptionsFunctions,
 	itemIndex: number,
+	appendAttribution = false,
+	instanceId?: string,
 ) {
 	const emailType = this.getNodeParameter('emailType', itemIndex) as string;
+	let message = (this.getNodeParameter('message', itemIndex, '') as string).trim();
 
-	let body = '';
-	let htmlBody = '';
-
-	if (emailType === 'html') {
-		htmlBody = (this.getNodeParameter('message', itemIndex, '') as string).trim();
-	} else {
-		body = (this.getNodeParameter('message', itemIndex, '') as string).trim();
+	if (appendAttribution) {
+		const attributionText = 'This email was sent automatically with ';
+		const link = `https://n8n.io/?utm_source=n8n-internal&utm_medium=powered_by&utm_campaign=${encodeURIComponent(
+			'n8n-nodes-base.gmail',
+		)}${instanceId ? '_' + instanceId : ''}`;
+		if (emailType === 'html') {
+			message = `
+			${message}
+			<br>
+			<br>
+			---
+			<br>
+			<em>${attributionText}<a href="${link}" target="_blank">n8n</a></em>
+			`;
+		} else {
+			message = `${message}\n\n---\n${attributionText}n8n\n${'https://n8n.io'}`;
+		}
 	}
 
-	return { body, htmlBody };
+	const body = {
+		body: '',
+		htmlBody: '',
+	};
+
+	if (emailType === 'html') {
+		body.htmlBody = message;
+	} else {
+		body.body = message;
+	}
+
+	return body;
 }
 
 export async function prepareEmailAttachments(

packages/nodes-base/nodes/Google/Gmail/Gmail.node.ts

@@ -13,12 +13,13 @@ export class Gmail extends VersionedNodeType {
 			group: ['transform'],
 			subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
 			description: 'Consume the Gmail API',
-			defaultVersion: 2,
+			defaultVersion: 2.1,
 		};
 
 		const nodeVersions: IVersionedNodeType['nodeVersions'] = {
 			1: new GmailV1(baseDescription),
 			2: new GmailV2(baseDescription),
+			2.1: new GmailV2(baseDescription),
 		};
 
 		super(nodeVersions, baseDescription);

packages/nodes-base/nodes/Google/Gmail/v2/GmailV2.node.ts

@@ -39,7 +39,7 @@ const versionDescription: INodeTypeDescription = {
 	name: 'gmail',
 	icon: 'file:gmail.svg',
 	group: ['transform'],
-	version: 2,
+	version: [2, 2.1],
 	subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
 	description: 'Consume the Gmail API',
 	defaults: {
@@ -205,6 +205,8 @@ export class GmailV2 implements INodeType {
 		const returnData: INodeExecutionData[] = [];
 		const resource = this.getNodeParameter('resource', 0);
 		const operation = this.getNodeParameter('operation', 0);
+		const nodeVersion = this.getNode().typeVersion;
+		const instanceId = await this.getInstanceId();
 
 		let responseData;
 
@@ -323,6 +325,11 @@ export class GmailV2 implements INodeType {
 							from = `${options.senderName as string} <${emailAddress}>`;
 						}
 
+						let appendAttribution = options.appendAttribution;
+						if (appendAttribution === undefined) {
+							appendAttribution = nodeVersion >= 2.1;
+						}
+
 						const email: IEmail = {
 							from,
 							to,
@@ -330,7 +337,7 @@ export class GmailV2 implements INodeType {
 							bcc,
 							replyTo,
 							subject: this.getNodeParameter('subject', i) as string,
-							...prepareEmailBody.call(this, i),
+							...prepareEmailBody.call(this, i, appendAttribution as boolean, instanceId),
 							attachments,
 						};
 

packages/nodes-base/nodes/Google/Gmail/v2/MessageDescription.ts

@@ -125,7 +125,7 @@ export const messageFields: INodeProperties[] = [
 		displayName: 'Email Type',
 		name: 'emailType',
 		type: 'options',
-		default: 'text',
+		default: 'html',
 		required: true,
 		noDataExpression: true,
 		options: [
@@ -143,6 +143,34 @@ export const messageFields: INodeProperties[] = [
 				resource: ['message'],
 				operation: ['send', 'reply'],
 			},
+			hide: {
+				'@version': [2],
+			},
+		},
+	},
+	{
+		displayName: 'Email Type',
+		name: 'emailType',
+		type: 'options',
+		default: 'html',
+		required: true,
+		noDataExpression: true,
+		options: [
+			{
+				name: 'Text',
+				value: 'text',
+			},
+			{
+				name: 'HTML',
+				value: 'html',
+			},
+		],
+		displayOptions: {
+			show: {
+				resource: ['message'],
+				operation: ['send', 'reply'],
+				'@version': [2],
+			},
 		},
 	},
 	{
@@ -171,6 +199,15 @@ export const messageFields: INodeProperties[] = [
 		},
 		default: {},
 		options: [
+			{
+				// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+				displayName: 'Append n8n Attribution',
+				name: 'appendAttribution',
+				type: 'boolean',
+				default: true,
+				description:
+					'Whether to include the phrase “This email was sent automatically with n8n” to the end of the email',
+			},
 			{
 				displayName: 'Attachments',
 				name: 'attachmentsUi',

packages/nodes-base/nodes/Microsoft/Teams/ChannelMessageDescription.ts

@@ -120,6 +120,14 @@ export const channelMessageFields: INodeProperties[] = [
 			},
 		},
 		options: [
+			{
+				displayName: 'Include Link to Workflow',
+				name: 'includeLinkToWorkflow',
+				type: 'boolean',
+				default: true,
+				description:
+					'Whether to append a link to this workflow at the end of the message. This is helpful if you have many workflows sending messages.',
+			},
 			{
 				displayName: 'Make Reply',
 				name: 'makeReply',

packages/nodes-base/nodes/Microsoft/Teams/ChatMessageDescription.ts

@@ -95,6 +95,30 @@ export const chatMessageFields: INodeProperties[] = [
 		default: '',
 		description: 'The content of the item',
 	},
+	{
+		displayName: 'Options',
+		name: 'options',
+		type: 'collection',
+		displayOptions: {
+			show: {
+				operation: ['create'],
+				resource: ['chatMessage'],
+			},
+		},
+		default: {},
+		description: 'Other options to set',
+		placeholder: 'Add options',
+		options: [
+			{
+				displayName: 'Include Link to Workflow',
+				name: 'includeLinkToWorkflow',
+				type: 'boolean',
+				default: true,
+				description:
+					'Whether to append a link to this workflow at the end of the message. This is helpful if you have many workflows sending messages.',
+			},
+		],
+	},
 
 	/* -------------------------------------------------------------------------- */
 	/*                                 chatMessage:get                            */

packages/nodes-base/nodes/Microsoft/Teams/GenericFunctions.ts

@@ -89,3 +89,27 @@ export async function microsoftApiRequestAllItemsSkip(
 
 	return returnData;
 }
+
+export function prepareMessage(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	message: string,
+	messageType: string,
+	includeLinkToWorkflow: boolean,
+	instanceId?: string,
+) {
+	if (includeLinkToWorkflow) {
+		const { id } = this.getWorkflow();
+		const link = `${this.getInstanceBaseUrl()}workflow/${id}?utm_source=n8n-internal&utm_medium=powered_by&utm_campaign=${encodeURIComponent(
+			'n8n-nodes-base.microsoftTeams',
+		)}${instanceId ? '_' + instanceId : ''}`;
+		messageType = 'html';
+		message = `${message}<br><br><em> Powered by <a href="${link}">this n8n workflow</a> </em>`;
+	}
+
+	return {
+		body: {
+			contentType: messageType,
+			content: message,
+		},
+	};
+}

packages/nodes-base/nodes/Microsoft/Teams/MicrosoftTeams.node.ts

@@ -8,7 +8,11 @@ import type {
 	INodeTypeDescription,
 } from 'n8n-workflow';
 
-import { microsoftApiRequest, microsoftApiRequestAllItems } from './GenericFunctions';
+import {
+	microsoftApiRequest,
+	microsoftApiRequestAllItems,
+	prepareMessage,
+} from './GenericFunctions';
 
 import { channelFields, channelOperations } from './ChannelDescription';
 
@@ -24,7 +28,7 @@ export class MicrosoftTeams implements INodeType {
 		name: 'microsoftTeams',
 		icon: 'file:teams.svg',
 		group: ['input'],
-		version: 1,
+		version: [1, 1.1],
 		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
 		description: 'Consume Microsoft Teams API',
 		defaults: {
@@ -266,6 +270,9 @@ export class MicrosoftTeams implements INodeType {
 		let responseData;
 		const resource = this.getNodeParameter('resource', 0);
 		const operation = this.getNodeParameter('operation', 0);
+		const nodeVersion = this.getNode().typeVersion;
+		const instanceId = await this.getInstanceId();
+
 		for (let i = 0; i < length; i++) {
 			try {
 				if (resource === 'channel') {
@@ -365,12 +372,18 @@ export class MicrosoftTeams implements INodeType {
 						const message = this.getNodeParameter('message', i) as string;
 						const options = this.getNodeParameter('options', i);
 
-						const body: IDataObject = {
-							body: {
-								contentType: messageType,
-								content: message,
-							},
-						};
+						let includeLinkToWorkflow = options.includeLinkToWorkflow;
+						if (includeLinkToWorkflow === undefined) {
+							includeLinkToWorkflow = nodeVersion >= 1.1;
+						}
+
+						const body: IDataObject = prepareMessage.call(
+							this,
+							message,
+							messageType,
+							includeLinkToWorkflow as boolean,
+							instanceId,
+						);
 
 						if (options.makeReply) {
 							const replyToId = options.makeReply as string;
@@ -420,12 +433,19 @@ export class MicrosoftTeams implements INodeType {
 						const chatId = this.getNodeParameter('chatId', i) as string;
 						const messageType = this.getNodeParameter('messageType', i) as string;
 						const message = this.getNodeParameter('message', i) as string;
-						const body: IDataObject = {
-							body: {
-								contentType: messageType,
-								content: message,
-							},
-						};
+						const options = this.getNodeParameter('options', i, {});
+
+						const includeLinkToWorkflow =
+							options.includeLinkToWorkflow !== false && nodeVersion >= 1.1;
+
+						const body: IDataObject = prepareMessage.call(
+							this,
+							message,
+							messageType,
+							includeLinkToWorkflow,
+							instanceId,
+						);
+
 						responseData = await microsoftApiRequest.call(
 							this,
 							'POST',

packages/nodes-base/nodes/Slack/V2/GenericFunctions.ts

@@ -129,9 +129,12 @@ export async function slackApiRequestAllItems(
 	return returnData;
 }
 
-export function getMessageContent(this: IExecuteFunctions | ILoadOptionsFunctions, i: number) {
-	const nodeVersion = this.getNode().typeVersion;
-
+export function getMessageContent(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	i: number,
+	nodeVersion: number,
+	instanceId?: string,
+) {
 	const includeLinkToWorkflow = this.getNodeParameter(
 		'otherOptions.includeLinkToWorkflow',
 		i,
@@ -139,7 +142,9 @@ export function getMessageContent(this: IExecuteFunctions | ILoadOptionsFunction
 	) as IDataObject;
 
 	const { id } = this.getWorkflow();
-	const automatedMessage = `_Automated with this <${this.getInstanceBaseUrl()}workflow/${id}?utm_source=n8n&utm_medium=slackNode|n8n workflow>_`;
+	const automatedMessage = `_Automated with this <${this.getInstanceBaseUrl()}workflow/${id}?utm_source=n8n-internal&utm_medium=powered_by&utm_campaign=${encodeURIComponent(
+		'n8n-nodes-base.slack',
+	)}${instanceId ? '_' + instanceId : ''}|n8n workflow>_`;
 	const messageType = this.getNodeParameter('messageType', i) as string;
 
 	let content: IDataObject = {};

packages/nodes-base/nodes/Slack/V2/MessageDescription.ts

@@ -558,7 +558,7 @@ export const messageFields: INodeProperties[] = [
 		placeholder: 'Add options',
 		options: [
 			{
-				displayName: 'Include Link To Workflow',
+				displayName: 'Include Link to Workflow',
 				name: 'includeLinkToWorkflow',
 				type: 'boolean',
 				default: true,

packages/nodes-base/nodes/Slack/V2/SlackV2.node.ts

@@ -322,6 +322,9 @@ export class SlackV2 implements INodeType {
 		const resource = this.getNodeParameter('resource', 0);
 		const operation = this.getNodeParameter('operation', 0);
 
+		const nodeVersion = this.getNode().typeVersion;
+		const instanceId = await this.getInstanceId();
+
 		for (let i = 0; i < length; i++) {
 			try {
 				responseData = {
@@ -768,7 +771,7 @@ export class SlackV2 implements INodeType {
 							target = target.slice(0, 1) === '@' ? target : `@${target}`;
 						}
 						const { sendAsUser } = this.getNodeParameter('otherOptions', i) as IDataObject;
-						const content = getMessageContent.call(this, i);
+						const content = getMessageContent.call(this, i, nodeVersion, instanceId);
 
 						const body: IDataObject = {
 							channel: target,

packages/nodes-base/nodes/Telegram/GenericFunctions.ts

@@ -64,12 +64,51 @@ export interface IMarkupReplyKeyboardRemove {
  * @param {IDataObject} body The body object to add fields to
  * @param {number} index The index of the item
  */
-export function addAdditionalFields(this: IExecuteFunctions, body: IDataObject, index: number) {
+export function addAdditionalFields(
+	this: IExecuteFunctions,
+	body: IDataObject,
+	index: number,
+	nodeVersion?: number,
+	instanceId?: string,
+) {
+	const operation = this.getNodeParameter('operation', index);
+
 	// Add the additional fields
 	const additionalFields = this.getNodeParameter('additionalFields', index);
-	Object.assign(body, additionalFields);
 
-	const operation = this.getNodeParameter('operation', index);
+	if (operation === 'sendMessage') {
+		const attributionText = 'This message was sent automatically with ';
+		const link = `https://n8n.io/?utm_source=n8n-internal&utm_medium=powered_by&utm_campaign=${encodeURIComponent(
+			'n8n-nodes-base.telegram',
+		)}${instanceId ? '_' + instanceId : ''}`;
+
+		if (nodeVersion && nodeVersion >= 1.1 && additionalFields.appendAttribution === undefined) {
+			additionalFields.appendAttribution = true;
+		}
+
+		if (!additionalFields.parse_mode) {
+			additionalFields.parse_mode = 'Markdown';
+		}
+
+		const regex = /(https?|ftp|file):\/\/\S+|www\.\S+|\S+\.\S+/;
+		const containsUrl = regex.test(body.text as string);
+
+		if (!containsUrl) {
+			body.disable_web_page_preview = true;
+		}
+
+		if (additionalFields.appendAttribution) {
+			if (additionalFields.parse_mode === 'Markdown') {
+				body.text = `${body.text}\n\n_${attributionText}_[n8n](${link})`;
+			} else if (additionalFields.parse_mode === 'HTML') {
+				body.text = `${body.text}\n\n<em>${attributionText}</em><a href="${link}" target="_blank">n8n</a>`;
+			}
+		}
+
+		delete additionalFields.appendAttribution;
+	}
+
+	Object.assign(body, additionalFields);
 
 	// Add the reply markup
 	let replyMarkupOption = '';

packages/nodes-base/nodes/Telegram/Telegram.node.ts

@@ -17,7 +17,7 @@ export class Telegram implements INodeType {
 		name: 'telegram',
 		icon: 'file:telegram.svg',
 		group: ['output'],
-		version: 1,
+		version: [1, 1.1],
 		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
 		description: 'Sends data to Telegram',
 		defaults: {
@@ -1461,6 +1461,20 @@ export class Telegram implements INodeType {
 				},
 				default: {},
 				options: [
+					{
+						// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+						displayName: 'Append n8n Attribution',
+						name: 'appendAttribution',
+						type: 'boolean',
+						default: true,
+						description:
+							'Whether to include the phrase “This message was sent automatically with n8n” to the end of the message',
+						displayOptions: {
+							show: {
+								'/operation': ['sendMessage'],
+							},
+						},
+					},
 					{
 						displayName: 'Caption',
 						name: 'caption',
@@ -1693,6 +1707,9 @@ export class Telegram implements INodeType {
 		const resource = this.getNodeParameter('resource', 0);
 		const binaryData = this.getNodeParameter('binaryData', 0, false);
 
+		const nodeVersion = this.getNode().typeVersion;
+		const instanceId = await this.getInstanceId();
+
 		for (let i = 0; i < items.length; i++) {
 			try {
 				// Reset all values
@@ -1917,7 +1934,7 @@ export class Telegram implements INodeType {
 						body.text = this.getNodeParameter('text', i) as string;
 
 						// Add additional fields and replyMarkup
-						addAdditionalFields.call(this, body, i);
+						addAdditionalFields.call(this, body, i, nodeVersion, instanceId);
 					} else if (operation === 'sendMediaGroup') {
 						// ----------------------------------
 						//         message:sendMediaGroup

packages/workflow/src/Interfaces.ts

@@ -740,6 +740,7 @@ export interface FunctionsBase {
 	getTimezone(): string;
 	getRestApiUrl(): string;
 	getInstanceBaseUrl(): string;
+	getInstanceId(): Promise<string>;
 
 	getMode?: () => WorkflowExecuteMode;
 	getActivationMode?: () => WorkflowActivateMode;