diff --git a/backend/package-lock.json b/backend/package-lock.json
index e4c6116..e990dae 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -16,7 +16,10 @@
         "@nestjs/mongoose": "^11.0.3",
         "@nestjs/platform-express": "^11.0.1",
         "bcrypt": "^6.0.0",
+        "class-transformer": "^0.5.1",
+        "class-validator": "^0.14.2",
         "mongoose": "^8.18.1",
+        "nodemailer": "^7.0.10",
         "reflect-metadata": "^0.2.2",
         "rxjs": "^7.8.1"
       },
@@ -2963,6 +2966,12 @@
         "@types/superagent": "^8.1.0"
       }
     },
+    "node_modules/@types/validator": {
+      "version": "13.15.8",
+      "resolved": "https://registry.npmmirror.com/@types/validator/-/validator-13.15.8.tgz",
+      "integrity": "sha512-/NAHBJ0RwpsbLzzbLoLm/GnvCGB+A0/p5S61RUIsh7j3MP2dMkdUbWNdFqnluLlUheAs1CR2GlX2R7uzb7Tc0w==",
+      "license": "MIT"
+    },
     "node_modules/@types/webidl-conversions": {
       "version": "7.0.3",
       "resolved": "https://registry.npmmirror.com/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
@@ -4442,6 +4451,23 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmmirror.com/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "license": "MIT"
+    },
+    "node_modules/class-validator": {
+      "version": "0.14.2",
+      "resolved": "https://registry.npmmirror.com/class-validator/-/class-validator-0.14.2.tgz",
+      "integrity": "sha512-3kMVRF2io8N8pY1IFIXlho9r8IPUUIfHe2hYVtiebvAzU2XeQFXTv+XI4WX+TnXmtwXMDcjngcpkiPM0O9PvLw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/validator": "^13.11.8",
+        "libphonenumber-js": "^1.11.1",
+        "validator": "^13.9.0"
+      }
+    },
     "node_modules/cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmmirror.com/cli-cursor/-/cli-cursor-3.1.0.tgz",
@@ -7423,6 +7449,12 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/libphonenumber-js": {
+      "version": "1.12.26",
+      "resolved": "https://registry.npmmirror.com/libphonenumber-js/-/libphonenumber-js-1.12.26.tgz",
+      "integrity": "sha512-MagMOuqEXB2Pa90cWE+BoCmcKJx+de5uBIicaUkQ+uiEslZ0OBMNOkSZT/36syXNHu68UeayTxPm3DYM2IHoLQ==",
+      "license": "MIT"
+    },
     "node_modules/lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmmirror.com/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -8064,6 +8096,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/nodemailer": {
+      "version": "7.0.10",
+      "resolved": "https://registry.npmmirror.com/nodemailer/-/nodemailer-7.0.10.tgz",
+      "integrity": "sha512-Us/Se1WtT0ylXgNFfyFSx4LElllVLJXQjWi2Xz17xWw7amDKO2MLtFnVp1WACy7GkVGs+oBlRopVNUzlrGSw1w==",
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmmirror.com/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -10208,6 +10249,15 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/validator": {
+      "version": "13.15.23",
+      "resolved": "https://registry.npmmirror.com/validator/-/validator-13.15.23.tgz",
+      "integrity": "sha512-4yoz1kEWqUjzi5zsPbAS/903QXSYp0UOtHsPpp7p9rHAw/W+dkInskAE386Fat3oKRROwO98d9ZB0G4cObgUyw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
diff --git a/backend/package.json b/backend/package.json
index 731c9c5..c0ef817 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -27,7 +27,10 @@
     "@nestjs/mongoose": "^11.0.3",
     "@nestjs/platform-express": "^11.0.1",
     "bcrypt": "^6.0.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.2",
     "mongoose": "^8.18.1",
+    "nodemailer": "^7.0.10",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },
diff --git a/backend/src/api/article/article.module.ts b/backend/src/api/article/article.module.ts
index 17a0268..629097d 100644
--- a/backend/src/api/article/article.module.ts
+++ b/backend/src/api/article/article.module.ts
@@ -1,15 +1,18 @@
 // article.module.ts
 import { Module } from '@nestjs/common';
 import { MongooseModule } from '@nestjs/mongoose';
+import { ConfigModule } from '@nestjs/config';
 import { ArticleController } from './article.controller';
 import { ArticleService } from './article.service';
 import { Article, ArticleSchema } from './article.schema';
+import { EmailService } from '../../services/email.service';
 
 @Module({
   imports: [
     MongooseModule.forFeature([{ name: Article.name, schema: ArticleSchema }]),
+    ConfigModule,
   ],
   controllers: [ArticleController],
-  providers: [ArticleService],
+  providers: [ArticleService, EmailService],
 })
 export class ArticleModule {}
diff --git a/backend/src/api/article/article.service.spec.ts b/backend/src/api/article/article.service.spec.ts
index 094ad9c..28e9042 100644
--- a/backend/src/api/article/article.service.spec.ts
+++ b/backend/src/api/article/article.service.spec.ts
@@ -3,6 +3,8 @@ import { getModelToken } from '@nestjs/mongoose';
 import { ArticleService } from './article.service';
 import { Article, ArticleStatus, EvidenceType } from './article.schema';
 import { Model } from 'mongoose';
+import { EmailService } from '../../services/email.service';
+import { ConfigService } from '@nestjs/config';
 
 // Mock Article model
 const mockArticleModel = {
@@ -16,6 +18,17 @@ const mockArticleModel = {
   exec: jest.fn(),
 };
 
+// Mock EmailService
+const mockEmailService = {
+  sendMail: jest.fn().mockResolvedValue(true),
+  sendBulkMail: jest.fn().mockResolvedValue(true),
+};
+
+// Mock ConfigService
+const mockConfigService = {
+  get: jest.fn(),
+};
+
 describe('ArticleService', () => {
   let service: ArticleService;
   let model: Model<Article>;
@@ -28,6 +41,14 @@ describe('ArticleService', () => {
           provide: getModelToken(Article.name),
           useValue: mockArticleModel,
         },
+        {
+          provide: EmailService,
+          useValue: mockEmailService,
+        },
+        {
+          provide: ConfigService,
+          useValue: mockConfigService,
+        },
       ],
     }).compile();
 
diff --git a/backend/src/api/article/article.service.ts b/backend/src/api/article/article.service.ts
index 55c16b2..2eab37a 100644
--- a/backend/src/api/article/article.service.ts
+++ b/backend/src/api/article/article.service.ts
@@ -4,11 +4,13 @@ import { InjectModel } from '@nestjs/mongoose';
 import { Model } from 'mongoose';
 import { Article, ArticleDocument, ArticleStatus } from './article.schema';
 import { CreateArticleDto, ReviewArticleDto } from './create-article.dto';
+import { EmailService } from '../../services/email.service';
 
 @Injectable()
 export class ArticleService {
   constructor(
     @InjectModel(Article.name) private articleModel: Model<ArticleDocument>,
+    private emailService: EmailService,
   ) {}
 
   // Get all articles (with optional filtering)
@@ -39,7 +41,10 @@ export class ArticleService {
   }
 
   // Find articles with similar DOIs (for duplicate checking)
-  async findArticlesBySimilarDOI(doi: string, excludeId?: string): Promise<Article[]> {
+  async findArticlesBySimilarDOI(
+    doi: string,
+    excludeId?: string,
+  ): Promise<Article[]> {
     // Query object to build the search criteria
     const query: any = { doi };
 
@@ -175,7 +180,10 @@ export class ArticleService {
       updateData['isDuplicate'] = true;
       // Prevent an article from being marked as duplicate of itself
       if (reviewData.duplicateOf === id) {
-        throw new HttpException('Cannot mark article as duplicate of itself', HttpStatus.BAD_REQUEST);
+        throw new HttpException(
+          'Cannot mark article as duplicate of itself',
+          HttpStatus.BAD_REQUEST,
+        );
       }
       updateData['duplicateOf'] = reviewData.duplicateOf;
     } else {
@@ -195,9 +203,98 @@ export class ArticleService {
       );
     }
 
+    // Send email notification to submitter
+    console.log(`Attempting to send notification email for article ${updatedArticle.customId} with status ${updatedArticle.status}`);
+    await this.sendReviewNotificationEmail(updatedArticle);
+
     return updatedArticle;
   }
 
+  // Send email notification to submitter about article review status
+  private async sendReviewNotificationEmail(article: Article) {
+    console.log(`Processing notification for article ${article.customId} with status ${article.status} and submitter email ${article.submitterEmail}`);
+
+    if (!article.submitterEmail) {
+      console.warn(`No submitter email found for article ${article.customId}`);
+      return;
+    }
+
+    let subject = '';
+    let htmlContent = '';
+
+    // Determine the content based on the status
+    if (article.status === ArticleStatus.APPROVED) {
+      subject = 'Your Article Has Been Approved - CISE_SPEED';
+      htmlContent = `
+        <h2>Article Review Result Notification</h2>
+        <p>Hello,</p>
+        <p>Your article <strong>"${article.title}"</strong> has been approved and added to the database.</p>
+        <p><strong>Article Details:</strong></p>
+        <ul>
+          <li>Title: ${article.title}</li>
+          <li>ID: ${article.customId}</li>
+          <li>Authors: ${article.authors}</li>
+          <li>Publication Year: ${article.pubyear}</li>
+          <li>Evidence Type: ${article.evidence}</li>
+        </ul>
+        <p>Thank you for contributing to the CISE_SPEED database!</p>
+        <p>If you have any questions, please feel free to contact us.</p>
+      `;
+    } else if (article.status === ArticleStatus.REJECTED) {
+      subject = 'Article Review Result - CISE_SPEED';
+      htmlContent = `
+        <h2>Article Review Result Notification</h2>
+        <p>Hello,</p>
+        <p>Unfortunately, your article <strong>"${article.title}"</strong> did not pass the review.</p>
+
+        ${article.reviewComment ? `<p><strong>Review Comment:</strong> ${article.reviewComment}</p>` : ''}
+
+        <p><strong>Article Details:</strong></p>
+        <ul>
+          <li>Title: ${article.title}</li>
+          <li>ID: ${article.customId}</li>
+          <li>Authors: ${article.authors}</li>
+          <li>Publication Year: ${article.pubyear}</li>
+        </ul>
+        <p>Thank you for your interest and contribution to the CISE_SPEED database!</p>
+        <p>If you have any questions, please feel free to contact us.</p>
+      `;
+    } else {
+      // For other status changes (like back to PENDING), we could send a generic notification
+      console.log(
+        `Article ${article.customId} status changed to ${article.status}, no email notification required.`,
+      );
+      return;
+    }
+
+    console.log(`Attempting to send email to ${article.submitterEmail} with subject: ${subject}`);
+
+    try {
+      const result = await this.emailService.sendMail(
+        article.submitterEmail,
+        subject,
+        htmlContent,
+        `CISE_SPEED: Your article "${article.title}" has been reviewed`, // text
+        'CISE_SPEED System', // fromName
+      );
+
+      if (result) {
+        console.log(
+          `Notification email sent successfully to ${article.submitterEmail} for article ${article.customId}`,
+        );
+      } else {
+        console.error(
+          `Failed to send notification email to ${article.submitterEmail} for article ${article.customId}`,
+        );
+      }
+    } catch (error) {
+      console.error(
+        `Error sending notification email to ${article.submitterEmail} for article ${article.customId}:`,
+        error,
+      );
+    }
+  }
+
   // Search articles by keywords and filters with sorting
   async searchArticles(
     keywords: string,
diff --git a/backend/src/app.module.ts b/backend/src/app.module.ts
index d0bd6e4..f1f0016 100644
--- a/backend/src/app.module.ts
+++ b/backend/src/app.module.ts
@@ -5,6 +5,7 @@ import { MongooseModule } from '@nestjs/mongoose';
 import { ConfigModule } from '@nestjs/config';
 import { ArticleModule } from './api/article/article.module';
 import { UserModule } from './api/user/user.module';
+import { EmailModule } from './services/email.module';
 
 @Module({
   imports: [
@@ -12,6 +13,7 @@ import { UserModule } from './api/user/user.module';
     MongooseModule.forRoot(process.env.DB_URI || ''),
     ArticleModule,
     UserModule,
+    EmailModule,
   ],
   controllers: [AppController],
   providers: [AppService],
diff --git a/backend/src/controllers/email.controller.ts b/backend/src/controllers/email.controller.ts
new file mode 100644
index 0000000..91c36db
--- /dev/null
+++ b/backend/src/controllers/email.controller.ts
@@ -0,0 +1,109 @@
+import { Controller, Post, Get, Body, Query, UsePipes, ValidationPipe } from '@nestjs/common';
+import { EmailService } from '../services/email.service';
+import { IsEmail, IsString, IsArray, ValidateNested, IsOptional } from 'class-validator';
+import { Type } from 'class-transformer';
+
+class SendEmailDto {
+  @IsEmail()
+  to: string;
+
+  @IsString()
+  subject: string;
+
+  @IsString()
+  html: string;
+
+  @IsString()
+  @IsOptional()
+  text?: string;
+
+  @IsString()
+  @IsOptional()
+  fromName?: string;
+}
+
+class SendBulkEmailDto {
+  @IsArray()
+  @IsEmail({}, { each: true })
+  to: string[];
+
+  @IsString()
+  subject: string;
+
+  @IsString()
+  html: string;
+
+  @IsString()
+  @IsOptional()
+  text?: string;
+
+  @IsString()
+  @IsOptional()
+  fromName?: string;
+}
+
+@Controller('email')
+export class EmailController {
+  constructor(private readonly emailService: EmailService) {}
+
+  @Post('send')
+  @UsePipes(new ValidationPipe({ transform: true }))
+  async sendEmail(@Body() sendEmailDto: SendEmailDto) {
+    const { to, subject, html, text, fromName } = sendEmailDto;
+    const result = await this.emailService.sendMail(to, subject, html, text, fromName);
+
+    if (result) {
+      return {
+        success: true,
+        message: 'Email sent successfully',
+      };
+    } else {
+      return {
+        success: false,
+        message: 'Email sending failed',
+      };
+    }
+  }
+
+  @Post('send-bulk')
+  @UsePipes(new ValidationPipe({ transform: true }))
+  async sendBulkEmail(@Body() sendBulkEmailDto: SendBulkEmailDto) {
+    const { to, subject, html, text, fromName } = sendBulkEmailDto;
+    const result = await this.emailService.sendBulkMail(to, subject, html, text, fromName);
+
+    if (result) {
+      return {
+        success: true,
+        message: 'Bulk email sent successfully',
+      };
+    } else {
+      return {
+        success: false,
+        message: 'Bulk email sending failed',
+      };
+    }
+  }
+
+  @Get('test')
+  async testEmail(@Query('to') to: string, @Query('fromName') fromName?: string) {
+    const result = await this.emailService.sendMail(
+      to,
+      'Test Email',
+      '<h1>This is a test email</h1><p>Email sending functionality is working properly.</p>',
+      'This is a test email, email sending functionality is working properly.',
+      fromName,
+    );
+
+    if (result) {
+      return {
+        success: true,
+        message: 'Test email sent successfully',
+      };
+    } else {
+      return {
+        success: false,
+        message: 'Test email sending failed',
+      };
+    }
+  }
+}
\ No newline at end of file
diff --git a/backend/src/services/email.module.ts b/backend/src/services/email.module.ts
new file mode 100644
index 0000000..a7f73ae
--- /dev/null
+++ b/backend/src/services/email.module.ts
@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+import { EmailService } from './email.service';
+import { EmailController } from '../controllers/email.controller';
+import { ConfigService } from '@nestjs/config';
+
+@Module({
+  providers: [EmailService, ConfigService],
+  controllers: [EmailController],
+  exports: [EmailService],
+})
+export class EmailModule {}
\ No newline at end of file
diff --git a/backend/src/services/email.service.ts b/backend/src/services/email.service.ts
new file mode 100644
index 0000000..5e54891
--- /dev/null
+++ b/backend/src/services/email.service.ts
@@ -0,0 +1,83 @@
+import { Injectable } from '@nestjs/common';
+import * as nodemailer from 'nodemailer';
+import { ConfigService } from '@nestjs/config';
+
+@Injectable()
+export class EmailService {
+  private transporter: nodemailer.Transporter;
+
+  constructor(private configService: ConfigService) {
+    // Get email configuration from environment
+    const emailHost = this.configService.get<string>('EMAIL_HOST');
+    const emailPort = this.configService.get<number>('EMAIL_PORT');
+    const emailUser = this.configService.get<string>('EMAIL_USER');
+    const emailPassword = this.configService.get<string>('EMAIL_PASSWORD');
+    const emailSecure = this.configService.get<string>('EMAIL_SECURE') === 'true';
+
+    this.transporter = nodemailer.createTransport({
+      host: emailHost,
+      port: emailPort,
+      secure: emailSecure, // true for 465, false for other ports
+      auth: {
+        user: emailUser, // email address
+        pass: emailPassword, // email password/authorization code
+      },
+    });
+  }
+
+  async sendMail(
+    to: string,
+    subject: string,
+    html: string,
+    text?: string,
+    fromName?: string,
+  ): Promise<boolean> {
+    try {
+      const emailUser = this.configService.get<string>('EMAIL_USER');
+      const from = fromName ? `"${fromName}" <${emailUser}>` : emailUser;
+
+      const mailOptions = {
+        from, // sender email with optional name
+        to, // recipient email
+        subject, // email subject
+        text, // plain text content (optional)
+        html, // HTML content
+      };
+
+      const info = await this.transporter.sendMail(mailOptions);
+      console.log('Email sent successfully:', info.messageId);
+      return true;
+    } catch (error) {
+      console.error('Email sending failed:', error);
+      return false;
+    }
+  }
+
+  async sendBulkMail(
+    to: string[],
+    subject: string,
+    html: string,
+    text?: string,
+    fromName?: string,
+  ): Promise<boolean> {
+    try {
+      const emailUser = this.configService.get<string>('EMAIL_USER');
+      const from = fromName ? `"${fromName}" <${emailUser}>` : emailUser;
+
+      const mailOptions = {
+        from, // sender email with optional name
+        to: to.join(', '), // multiple recipients
+        subject, // email subject
+        text, // plain text content (optional)
+        html, // HTML content
+      };
+
+      const info = await this.transporter.sendMail(mailOptions);
+      console.log('Bulk email sent successfully:', info.messageId);
+      return true;
+    } catch (error) {
+      console.error('Bulk email sending failed:', error);
+      return false;
+    }
+  }
+}
\ No newline at end of file