diff --git a/packages/server/src/services/Sales/Receipts/SaleReceiptApplication.ts b/packages/server/src/services/Sales/Receipts/SaleReceiptApplication.ts
index 8dfdd4c75..9fdfb548a 100644
--- a/packages/server/src/services/Sales/Receipts/SaleReceiptApplication.ts
+++ b/packages/server/src/services/Sales/Receipts/SaleReceiptApplication.ts
@@ -5,6 +5,7 @@ import {
   IPaginationMeta,
   ISaleReceipt,
   ISalesReceiptsFilter,
+  SaleReceiptMailOpts,
 } from '@/interfaces';
 import { EditSaleReceipt } from './EditSaleReceipt';
 import { GetSaleReceipt } from './GetSaleReceipt';
@@ -13,6 +14,7 @@ import { GetSaleReceipts } from './GetSaleReceipts';
 import { CloseSaleReceipt } from './CloseSaleReceipt';
 import { SaleReceiptsPdf } from './SaleReceiptsPdfService';
 import { SaleReceiptNotifyBySms } from './SaleReceiptNotifyBySms';
+import { SaleReceiptMailNotification } from './SaleReceiptMailNotification';
 
 @Service()
 export class SaleReceiptApplication {
@@ -40,6 +42,9 @@ export class SaleReceiptApplication {
   @Inject()
   private saleReceiptNotifyBySmsService: SaleReceiptNotifyBySms;
 
+  @Inject()
+  private saleReceiptNotifyByMailService: SaleReceiptMailNotification;
+
   /**
    * Creates a new sale receipt with associated entries.
    * @param {number} tenantId
@@ -166,4 +171,21 @@ export class SaleReceiptApplication {
       saleReceiptId
     );
   }
+
+  /**
+   * Sends the receipt mail of the given sale receipt.
+   * @param {number} tenantId
+   * @param {number} saleReceiptId
+   */
+  public sendSaleReceiptMail(
+    tenantId: number,
+    saleReceiptId: number,
+    messageOpts: SaleReceiptMailOpts
+  ) {
+    return this.saleReceiptNotifyByMailService.triggerMail(
+      tenantId,
+      saleReceiptId,
+      messageOpts
+    );
+  }
 }
diff --git a/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotification.ts b/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotification.ts
new file mode 100644
index 000000000..bf6c4c893
--- /dev/null
+++ b/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotification.ts
@@ -0,0 +1,147 @@
+import * as R from 'ramda';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Inject, Service } from 'typedi';
+import { Tenant } from '@/system/models';
+import { formatSmsMessage } from '@/utils';
+import { ServiceError } from '@/exceptions';
+import Mail from '@/lib/Mail';
+import { GetSaleReceipt } from './GetSaleReceipt';
+import { SaleReceiptsPdf } from './SaleReceiptsPdfService';
+import {
+  DEFAULT_ESTIMATE_REMINDER_MAIL_CONTENT,
+  DEFAULT_ESTIMATE_REMINDER_MAIL_SUBJECT,
+} from '../Estimates/constants';
+import { ERRORS } from './constants';
+import { SaleReceiptMailOpts } from '@/interfaces';
+
+@Service()
+export class SaleReceiptMailNotification {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private getSaleReceiptService: GetSaleReceipt;
+
+  @Inject()
+  private receiptPdfService: SaleReceiptsPdf;
+
+  @Inject('agenda')
+  private agenda: any;
+
+  /**
+   * Sends the receipt mail of the given sale receipt.
+   * @param {number} tenantId
+   * @param {number} saleInvoiceId
+   * @param {SendInvoiceMailDTO} messageDTO
+   */
+  public async triggerMail(
+    tenantId: number,
+    saleReceiptId: number,
+    messageOpts: SaleReceiptMailOpts
+  ) {
+    const payload = {
+      tenantId,
+      saleReceiptId,
+      messageOpts,
+    };
+    await this.agenda.now('sale-receipt-mail-send', payload);
+  }
+
+  /**
+   * Retrieves the default receipt mail options.
+   * @param {number} tenantId
+   * @param {number} invoiceId
+   * @returns {Promise<SendInvoiceMailDTO>}
+   */
+  public getDefaultMailOpts = async (tenantId: number, invoiceId: number) => {
+    const { SaleReceipt } = this.tenancy.models(tenantId);
+    const saleReceipt = await SaleReceipt.query()
+      .findById(invoiceId)
+      .withGraphFetched('customer')
+      .throwIfNotFound();
+
+    return {
+      attachInvoice: true,
+      subject: DEFAULT_ESTIMATE_REMINDER_MAIL_SUBJECT,
+      body: DEFAULT_ESTIMATE_REMINDER_MAIL_CONTENT,
+      to: saleReceipt.customer.email,
+    };
+  };
+
+  /**
+   * Retrieves the formatted text of the given sale invoice.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} receiptId - Sale receipt id.
+   * @param {string} text - The given text.
+   * @returns {Promise<string>}
+   */
+  public textFormatter = async (
+    tenantId: number,
+    receiptId: number,
+    text: string
+  ): Promise<string> => {
+    const invoice = await this.getSaleReceiptService.getSaleReceipt(
+      tenantId,
+      receiptId
+    );
+    const organization = await Tenant.query()
+      .findById(tenantId)
+      .withGraphFetched('metadata');
+
+    return formatSmsMessage(text, {
+      CompanyName: organization.metadata.name,
+      CustomerName: invoice.customer.displayName,
+      InvoiceNumber: invoice.invoiceNo,
+      InvoiceDueAmount: invoice.dueAmountFormatted,
+      InvoiceDueDate: invoice.dueDateFormatted,
+      InvoiceDate: invoice.invoiceDateFormatted,
+      InvoiceAmount: invoice.totalFormatted,
+    });
+  };
+
+  /**
+   * Triggers the mail invoice.
+   * @param {number} tenantId
+   * @param {number} saleInvoiceId
+   * @param {SendInvoiceMailDTO} messageDTO
+   * @returns {Promise<void>}
+   */
+  public async sendMail(
+    tenantId: number,
+    saleReceiptId: number,
+    messageOpts: SaleReceiptMailOpts
+  ) {
+    const defaultMessageOpts = await this.getDefaultMailOpts(
+      tenantId,
+      saleReceiptId
+    );
+    // Parsed message opts with default options.
+    const parsedMessageOpts = {
+      ...defaultMessageOpts,
+      ...messageOpts,
+    };
+    // In case there is no email address from the customer or from options, throw an error.
+    if (!parsedMessageOpts.to) {
+      throw new ServiceError(ERRORS.NO_INVOICE_CUSTOMER_EMAIL_ADDR);
+    }
+    const formatter = R.curry(this.textFormatter)(tenantId, saleReceiptId);
+    const body = await formatter(parsedMessageOpts.body);
+    const subject = await formatter(parsedMessageOpts.subject);
+    const attachments = [];
+
+    if (parsedMessageOpts.attachInvoice) {
+      // Retrieves document buffer of the invoice pdf document.
+      const receiptPdfBuffer = await this.receiptPdfService.saleReceiptPdf(
+        tenantId,
+        saleReceiptId
+      );
+      attachments.push({ filename: 'invoice.pdf', content: receiptPdfBuffer });
+    }
+    await new Mail()
+      .setSubject(subject)
+      .setTo(parsedMessageOpts.to)
+      .setContent(body)
+      .setAttachments(attachments)
+      .send();
+  }
+}
diff --git a/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotificationJob.ts b/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotificationJob.ts
new file mode 100644
index 000000000..f32325114
--- /dev/null
+++ b/packages/server/src/services/Sales/Receipts/SaleReceiptMailNotificationJob.ts
@@ -0,0 +1,36 @@
+import Container, { Service } from 'typedi';
+import { SaleReceiptMailNotification } from './SaleReceiptMailNotification';
+
+@Service()
+export class SaleReceiptMailNotificationJob {
+  /**
+   * Constructor method.
+   */
+  constructor(agenda) {
+    agenda.define(
+      'sale-receipt-mail-send',
+      { priority: 'high', concurrency: 2 },
+      this.handler
+    );
+  }
+
+  /**
+   * Triggers sending invoice mail.
+   */
+  private handler = async (job, done: Function) => {
+    const { tenantId, saleReceiptId, messageOpts } = job.attrs.data;
+    const receiveMailNotification = Container.get(SaleReceiptMailNotification);
+
+    try {
+      await receiveMailNotification.sendMail(
+        tenantId,
+        saleReceiptId,
+        messageOpts
+      );
+      done();
+    } catch (error) {
+      console.log(error);
+      done(error);
+    }
+  };
+}
diff --git a/packages/server/src/services/Sales/Receipts/SaleReceiptsPdfService.ts b/packages/server/src/services/Sales/Receipts/SaleReceiptsPdfService.ts
index c06263212..cad2b5f93 100644
--- a/packages/server/src/services/Sales/Receipts/SaleReceiptsPdfService.ts
+++ b/packages/server/src/services/Sales/Receipts/SaleReceiptsPdfService.ts
@@ -1,6 +1,7 @@
 import { Inject, Service } from 'typedi';
 import { TemplateInjectable } from '@/services/TemplateInjectable/TemplateInjectable';
 import { ChromiumlyTenancy } from '@/services/ChromiumlyTenancy/ChromiumlyTenancy';
+import { GetSaleReceipt } from './GetSaleReceipt';
 
 @Service()
 export class SaleReceiptsPdf {
@@ -10,11 +11,20 @@ export class SaleReceiptsPdf {
   @Inject()
   private templateInjectable: TemplateInjectable;
 
+  @Inject()
+  private getSaleReceiptService: GetSaleReceipt;
+
   /**
-   * Retrieve sale invoice pdf content.
-   * @param {} saleInvoice -
+   * Retrieves sale invoice pdf content.
+   * @param {number} tenantId - 
+   * @param {number} saleInvoiceId -
+   * @returns {Promise<Buffer>}
    */
-  public async saleReceiptPdf(tenantId: number, saleReceipt) {
+  public async saleReceiptPdf(tenantId: number, saleReceiptId: number) {
+    const saleReceipt = await this.getSaleReceiptService.getSaleReceipt(
+      tenantId,
+      saleReceiptId
+    );
     const htmlContent = await this.templateInjectable.render(
       tenantId,
       'modules/receipt-regular',
diff --git a/packages/server/src/services/Sales/Receipts/constants.ts b/packages/server/src/services/Sales/Receipts/constants.ts
index bf0cdef18..977a5d9b1 100644
--- a/packages/server/src/services/Sales/Receipts/constants.ts
+++ b/packages/server/src/services/Sales/Receipts/constants.ts
@@ -1,3 +1,15 @@
+export const DEFAULT_RECEIPT_MAIL_SUBJECT =
+  'Invoice {InvoiceNumber} from {CompanyName}';
+export const DEFAULT_RECEIPT_MAIL_CONTENT = `
+<p>Dear {CustomerName}</p>
+<p>Thank you for your business, You can view or print your invoice from attachements.</p>
+<p>
+Invoice <strong>#{InvoiceNumber}</strong><br />
+Due Date : <strong>{InvoiceDueDate}</strong><br />
+Amount   : <strong>{InvoiceAmount}</strong></br />
+</p>
+`;
+
 export const ERRORS = {
   SALE_RECEIPT_NOT_FOUND: 'SALE_RECEIPT_NOT_FOUND',
   DEPOSIT_ACCOUNT_NOT_FOUND: 'DEPOSIT_ACCOUNT_NOT_FOUND',
@@ -6,6 +18,7 @@ export const ERRORS = {
   SALE_RECEIPT_IS_ALREADY_CLOSED: 'SALE_RECEIPT_IS_ALREADY_CLOSED',
   SALE_RECEIPT_NO_IS_REQUIRED: 'SALE_RECEIPT_NO_IS_REQUIRED',
   CUSTOMER_HAS_SALES_INVOICES: 'CUSTOMER_HAS_SALES_INVOICES',
+  NO_INVOICE_CUSTOMER_EMAIL_ADDR: 'NO_INVOICE_CUSTOMER_EMAIL_ADDR'
 };
 
 export const DEFAULT_VIEW_COLUMNS = [];