#phpmailer

[flux443]

A critical command injection vulnerability found in the popular POHPMailer PHP library.

A critical command injection vulnerability in PHPMailer—a widely used PHP library for sending emails—has recently come under renewed scrutiny following reports of active exploitation. Identified as CVE-2016-10033, this vulnerability poses a significant risk to web applications that rely on PHPMailer for email functionality. Vulnerability Overview The vulnerability stems from improper…

[leixue]

PHPMailer，免费开源的PHP邮件发送库 - 泪雪网

PHPMailer是一个流行的PHP邮件发送库，广泛用于在Web应用中发送电子邮件。支持SMTP、POP3、IMAP协议，能够发送HTML格式邮件和附件，支持多种身份验证方式和国际化字符集，提供简单易用的API，能够处理复杂的邮件发送需求，确保邮件的可靠性和安全性。

[eerilyjaggedcaldera]

Gmail SMTP Server: The Complete Guide to Sending Emails Securely and Effectively (2025)

Email remains a cornerstone of digital communication, whether you're a blogger, small business owner, marketer, or developer. But simply hitting “Send” on your message isn’t enough — behind every sent email is a reliable server working hard to ensure it gets delivered. That’s where the SMTP Server Gmail comes in.

If you’ve ever wondered how Gmail allows apps and websites to send emails, this blog will give you everything you need to know: what it is, how it works, how to use it, and whether it’s right for your needs.

 What is an SMTP Server?

SMTP stands for Simple Mail Transfer Protocol — the internet standard for sending emails. Think of SMTP as the “post office” for your digital mail. When you send an email through your Gmail account or a third-party tool (like WordPress, Outlook, or a CRM), SMTP handles the process of transferring your message to the recipient’s server.

Without SMTP, emails wouldn’t reach their destination.

 What is Gmail SMTP Server?

The Gmail SMTP server is Google’s official SMTP service that allows users to send emails through their Gmail account from third-party platforms or apps. Whether you’re using a contact form plugin on your website or a desktop mail client, Gmail’s SMTP server ensures reliable and secure email delivery.

It’s especially useful when you need to:

Send emails from a website contact form

Automate welcome emails or notifications

Use your Gmail account to send business communications

Avoid using unreliable PHP mail functions

 Gmail SMTP Server Configuration (Updated for 2025)

To use Gmail’s SMTP server, you need to configure your application with the following settings:

SMTP Setting

Value

SMTP Server Address

smtp.gmail.com

SMTP Port (TLS)

587

SMTP Port (SSL)

465

Requires Authentication

Yes

Username

Your full Gmail address

Password

Gmail Password or App Password

Encryption

TLS/SSL

Pro Tip: If you’ve enabled two-factor authentication (2FA) on your Gmail account, you must generate an App Password to use with SMTP.

 How to Use Gmail SMTP Server

1. In WordPress

Use plugins like WP Mail SMTP or Post SMTP Mailer to connect your Gmail account. This replaces the often unreliable default PHP mail function and ensures emails from your contact forms reach inboxes.

2. In Email Clients

If you use Outlook, Apple Mail, or Thunderbird, you can set Gmail SMTP as your outgoing mail server to send emails directly from those apps.

3. In Custom Apps

Developers can integrate Gmail SMTP in web apps to send confirmation emails, password resets, or notifications using their Gmail credentials and a library like PHPMailer or Nodemailer.

 Advantages of Gmail SMTP Server

Using Gmail’s SMTP server comes with several benefits:

 Trusted Delivery

Emails sent from Google’s SMTP servers have a high deliverability rate and are less likely to be marked as spam.

 Free for Light Usage

You can send up to 500 emails per day with a free Gmail account and up to 2,000 emails per day with a Google Workspace (formerly G Suite) account.

 Easy Integration

Gmail SMTP is compatible with almost all major CMS platforms, plugins, CRMs, and custom-built applications.

Secure

Gmail enforces encrypted connections using SSL or TLS, which ensures your data is safe during transit.

 Limitations of Gmail SMTP Server

While Gmail SMTP is excellent for small to medium use, it does have some limitations you should consider:

Limitation

Details

Daily Email Sending Limits

500/day (Gmail) or 2,000/day (Workspace)

Not for Bulk Marketing

Gmail’s policies prohibit mass promotional emails

IP Address Not Dedicated

Shared IPs can impact deliverability in rare cases

Rate Limits

Gmail throttles if you send too many emails quickly

Risk of Account Suspension

Spamming may trigger a temporary block or ban

If you plan to send bulk emails or manage large campaigns, it’s best to switch to a Dedicated SMTP Server for complete control, higher limits, and better inbox placement.

 Best Practices for Using Gmail SMTP

To get the most out of Gmail’s SMTP server, follow these tips:

1. Use App Passwords

Always use app-specific passwords if your account has 2FA enabled — this improves security and avoids login issues.

 2. Monitor Your Sending Limit

If you hit the daily cap, your messages will bounce. Stay below the threshold or consider a paid alternative.

 3. Implement SPF, DKIM, and DMARC

Set up these email authentication protocols to protect your domain and boost deliverability. This is especially important if you're sending from a custom domain through Gmail.

 4. Avoid Spammy Language

Using phrases like “Buy Now,” “Free Offer,” or “Limited Time” can trigger spam filters — even when using Gmail SMTP.

 5. Warm Up New Email Accounts

Don’t send 500 emails on day one. Gmail flags sudden volume spikes. Increase slowly over time.

 Gmail SMTP vs Dedicated SMTP Server

Here’s a quick comparison if you’re deciding between Gmail SMTP and a dedicated service:

Feature

Gmail SMTP

Dedicated SMTP Server

Email Sending Limit

500–2,000 per day

Unlimited or high-volume plans

Ideal For

Personal or Small Biz

Marketing, Transactional Emails

IP Reputation Control

No

Yes (dedicated IPs)

Cost

Free (Gmail)

Paid (based on usage)

Custom Domain Support

Yes

Yes

Email Authentication

Basic + SPF/DKIM

Advanced with full control

 Final Thoughts

The SMTP Server Gmail is a powerful and convenient tool for sending emails through trusted Google servers. It’s perfect for individuals, freelancers, startups, and anyone needing a reliable solution for email notifications, website forms, or client communication.

However, as your email volume and marketing needs grow, you’ll eventually run into Gmail’s sending limits and policy restrictions. That’s when switching to a Dedicated SMTP Server can give you the freedom, performance, and scalability you need to take your email strategy to the next level.

 SEO Keywords (Integrated Naturally)

SMTP Server Gmail

Gmail SMTP Settings 2025

Gmail SMTP for WordPress

How to use Gmail SMTP server

Gmail SMTP configuration

Gmail SMTP limitations

Gmail SMTP vs dedicated SMTP

[ericvanderburg]

U.S. CISA adds MRLG, PHPMailer, Rails Ruby on Rails, and Synacor Zimbra Collaboration Suite flaws to its Known Exploited Vulnerabilities catalog

http://i.securitythinkingcap.com/TLp9fb

[phpgurukul1]

How to send email from localhost using PHP

In this tutorial, we will learn how to send an email from localhost using PHP and Gmail. In the PHP web application, mail() function used to send the mail. But mail() function will not work in the localhost environment. In this tutorial, we will send an email from the localhost system using PHP and Gmail.

In this tutorial, we will use PHPmailer to send email from the localhost using PHP. The PHPmailer library provides the way to send an email from localhost with the SMTP server using PHP. We will use the Gmail account as an SMTP server to sending the email from localhost. Before using the Gmail SMTP server we need to configure the setting in our Gmail account.

Click: https://phpgurukul.com/how-to-send-email-from-localhost-using-php/

Login into your google account.

Go to the security page.

<?php

use PHPMailer\PHPMailer\PHPMailer;

use PHPMailer\PHPMailer\Exception;

require ‘vendor/autoload.php’;

$mail = new PHPMailer;

if(isset($_POST[‘send’])){

// getting post values

$fname=$_POST[‘fname’];

$toemail=$_POST[‘toemail’];

$subject=$_POST[‘subject’];

$message=$_POST[‘message’];

$mail->isSMTP(); // Set mailer to use SMTP

$mail->Host = ‘smtp.gmail.com’; // Specify main and backup SMTP servers

$mail->SMTPAuth = true; // Enable SMTP authentication

$mail->Username = ‘yourgmailid@gmail.com’; // SMTP username

$mail->Password = ‘Your_Gmail_Password’; // SMTP password

$mail->SMTPSecure = ‘tls’; // Enable TLS encryption, `ssl` also accepted

$mail->Port = 587; // TCP port to connect to

$mail->setFrom(‘yourgmailid@gmail.com’, ‘Your_Name’);

$mail->addReplyTo(‘yourgmailid@gmail.com’, ‘Your_Name’);

$mail->addAddress($toemail); // Add a recipient

// $mail->addCC(‘cc@example.com’); // Set CC Email here

// $mail->addBCC(‘bcc@example.com’); // Set BCC Email here

$mail->isHTML(true); // Set email format to HTML

$bodyContent=$message;

$mail->Subject =$subject;

$bodyContent = ‘Dear’.$fname;

$bodyContent .=’<p>’.$message.’</p>’;

$mail->Body = $bodyContent;

if(!$mail->send()) {

echo ‘Message could not be sent.’;

echo ‘Mailer Error: ‘ . $mail->ErrorInfo;

} else {

echo ‘Message has been sent’;

}

}

?>

Explanation of the above code

Include the PHPMailer library and create an instance of this class.

Set SMTP credentials (host, username, password, and port).

Specify sender name and email ($mail->setFrom('yourgmailid@gmail.com', 'Your_Name')).

Set recipient email address ($mail->addAddress($toemail)).

Set email subject ($mail->Subject).

Set the body content of the email ($mail->Subject =$subject;).

Use the mail->send() method of PHPMailer class to send an email.

Here is the Full code with HTML Form and PHP Code

<?php

use PHPMailer\PHPMailer\PHPMailer;

use PHPMailer\PHPMailer\Exception;

require ‘vendor/autoload.php’;

$mail = new PHPMailer;

if(isset($_POST[‘send’])){

// getting post values

$fname=$_POST[‘fname’];

$toemail=$_POST[‘toemail’];

$subject=$_POST[‘subject’];

$message=$_POST[‘message’];

$mail->isSMTP(); // Set mailer to use SMTP

$mail->Host = ‘smtp.gmail.com’; // Specify main and backup SMTP servers

$mail->SMTPAuth = true; // Enable SMTP authentication

$mail->Username = ‘yourgmailid@gmail.com’; // SMTP username

$mail->Password = ‘Your_Gmail_Password’; // SMTP password

$mail->SMTPSecure = ‘tls’; // Enable TLS encryption, `ssl` also accepted

$mail->Port = 587; // TCP port to connect to

$mail->setFrom(‘yourgmailid@gmail.com’, ‘Your_Name’);

$mail->addReplyTo(‘yourgmailid@gmail.com’, ‘Your_Name’);

$mail->addAddress($toemail); // Add a recipient

// $mail->addCC(‘cc@example.com’);

// $mail->addBCC(‘bcc@example.com’);

$mail->isHTML(true); // Set email format to HTML

$bodyContent=$message;

$mail->Subject =$subject;

$bodyContent = ‘Dear’.$fname;

$bodyContent .=’<p>’.$message.’</p>’;

$mail->Body = $bodyContent;

if(!$mail->send()) {

echo ‘Message could not be sent.’;

echo ‘Mailer Error: ‘ . $mail->ErrorInfo;

} else {

echo ‘Message has been sent’;

}

}

?>

<!DOCTYPE html>

<html lang=”en”>

<head>

<meta charset=”utf-8">

<meta name=”viewport” content=”width=device-width, initial-scale=1, shrink-to-fit=no”>

<title>How to send email from localhost using PHP</title>

<link rel=”stylesheet” href=”https://fonts.googleapis.com/css?family=Roboto|Courgette|Pacifico:400,700">

<link rel=”stylesheet” href=”https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">

<link rel=”stylesheet” href=”https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

<script src=”https://code.jquery.com/jquery-3.5.1.min.js"></script>

<script src=”https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js"></script>

<script src=”https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>

<style>

body {

color: #000;

background: #fcda2e;

font-family: “Roboto”, sans-serif;

}

.contact-form {

padding: 50px;

margin: 30px auto;

}

.contact-form h1 {

font-size: 42px;

font-family: ‘Pacifico’, sans-serif;

margin: 0 0 50px;

text-align: center;

}

.contact-form .form-group {

margin-bottom: 20px;

}

.contact-form .form-control, .contact-form .btn {

min-height: 40px;

border-radius: 2px;

}

.contact-form .form-control {

border-color: #e2c705;

}

.contact-form .form-control:focus {

border-color: #d8b012;

box-shadow: 0 0 8px #dcae10;

}

.contact-form .btn-primary, .contact-form .btn-primary:active {

min-width: 250px;

color: #fcda2e;

background: #000 !important;

margin-top: 20px;

border: none;

}

.contact-form .btn-primary:hover {

color: #fff;

}

.contact-form .btn-primary i {

margin-right: 5px;

}

.contact-form label {

opacity: 0.9;

}

.contact-form textarea {

resize: vertical;

}

.bs-example {

margin: 20px;

}

</style>

</head>

<body>

<div class=”container-lg”>

<div class=”row”>

<div class=”col-md-8 mx-auto”>

<div class=”contact-form”>

<h1>Get in Touch</h1>

<form method=”post”>

<div class=”row”>

<div class=”col-sm-6">

<div class=”form-group”>

<label for=”inputName”>Name</label>

<input type=”text” class=”form-control” id=”inputName” name=”fname” required>

</div>

</div>

<div class=”col-sm-6">

<div class=”form-group”>

<label for=”inputEmail”>Email</label>

<input type=”email” class=”form-control” id=”inputEmail” name=”toemail” required>

</div>

</div>

</div>

<div class=”form-group”>

<label for=”inputSubject”>Subject</label>

<input type=”text” class=”form-control” id=”inputSubject” name=”subject” required>

</div>

<div class=”form-group”>

<label for=”inputMessage”>Message</label>

<textarea class=”form-control” id=”inputMessage” name=”message” rows=”5" required></textarea>

</div>

<div class=”text-center”>

<button type=”submit” class=”btn btn-primary” name=”send”><i class=”fa fa-paper-plane”></i> Send</button>

</div>

</form>

</div>

</div>

</div>

</div>

</body>

</html>

PHP Gurukul

Welcome to PHPGurukul. We are a web development team striving our best to provide you with an unusual experience with PHP. Some technologies never fade, and PHP is one of them. From the time it has been introduced, the demand for PHP Projects and PHP developers is growing since 1994. We are here to make your PHP journey more exciting and useful.

Website : https://phpgurukul.com

[evilnapsis]

Registro, Login y Recuperar Password en PHP + BS5

Hola amigos, en el siguiente proyecto les traigo un registro y login de usuarios, ademas un recuperador de contraseñas o password la cual se envia por email usando la libreria PHPMailer. Continue reading Registro, Login y Recuperar Password en PHP + BS5

[mco2hospedagem]

Enviando e-mails ✉️ em PHP de forma prática e segura.

[veryutils]

Bulk Email Marketing Web Application For Business with VeryUtils PHP Batch Email Sender

Bulk Email Marketing Web Application For Business with VeryUtils PHP Batch Email Sender.

In the vast realm of digital communication, email marketing remains a cornerstone for businesses seeking to engage with their audience effectively. VeryUtils PHP Batch Email Sender emerges as a robust tool designed to empower marketers with advanced features, flexibility, and ease of use. This comprehensive guide explores the application's prowess in email marketing, unraveling the intricacies of its features to help businesses streamline and optimize their email campaigns.

Understanding the Power of Email Marketing:

Email marketing has evolved into a potent tool for businesses to connect with their audience, nurture leads, and drive conversions. VeryUtils PHP Batch Email Sender recognizes the significance of this channel and equips marketers with a suite of features tailored to maximize its potential.

Multiple SMTP Support for Enhanced Deliverability:

One of the standout features of VeryUtils PHP Batch Email Sender is its support for multiple SMTP servers. This functionality is pivotal for breaking through the limitations imposed by a single SMTP server, allowing marketers to scale their campaigns without encountering daily sending restrictions.

Auto Loop Mechanism for Continuous Delivery:

Automation is at the core of efficient email marketing. The application's auto loop mechanism seamlessly navigates through multiple SMTP servers, ensuring uninterrupted email delivery. This not only enhances the reliability of campaigns but also contributes to improved sender reputation.

Smart Server Management for Error-Free Campaigns:

Email campaigns can be derailed by failed SMTP servers. VeryUtils PHP Batch Email Sender employs intelligent server management, automatically checking and disabling failed servers. This proactive approach minimizes disruptions, contributing to smoother and error-free campaigns.

Total Sent Mails Report for Performance Insights:

Understanding the performance of an email campaign is crucial for refining strategies. The application provides a Total Sent Mails Report, offering detailed insights into the success of campaigns. Marketers can leverage this information to fine-tune their approaches and achieve better results.

PHPmailer Integration for Reliable Email Delivery:

Reliability in email delivery is non-negotiable. The integration of PHPmailer, a trusted library for sending emails using PHP, fortifies the application's capabilities. Marketers can be confident in the delivery of their messages to recipients' inboxes.

Customization with Full PHP Source Code:

Every business has unique requirements. VeryUtils PHP Batch Email Sender understands this and provides access to the full PHP source code. Marketers can customize the application to align with their branding and specific needs, ensuring a tailored email marketing solution.

Server Deployment for SaaS Service:

For businesses aiming to provide email marketing services to clients, the option to deploy VeryUtils PHP Batch Email Sender on a server as Software as a Service (SaaS) is invaluable. This facilitates client access to a seamless and user-friendly email marketing solution.

HTML Email Templates for Engaging Campaigns:

Visual appeal is a significant factor in email engagement. The application supports HTML email templates, allowing marketers to craft visually appealing and engaging campaigns. This feature is instrumental in capturing the attention of recipients and conveying messages effectively.

Unlimited Mailing List Management for Scalability:

Scalability is a key consideration for businesses with varying campaign sizes. VeryUtils PHP Batch Email Sender enables efficient management of mailing lists from text files, accommodating campaigns of different magnitudes without compromising efficiency.

Bulk Email Address Validation for List Cleanliness:

Maintaining a clean mailing list is paramount for email deliverability. The application includes a feature for bulk email address validation, automatically removing invalid addresses. This ensures that campaigns reach genuine and interested recipients.

Advanced Domain Checks for Optimal Delivery:

Optimizing email delivery requires a multifaceted approach. VeryUtils PHP Batch Email Sender incorporates advanced domain checks, including MX Record Checks and Domain Checks over IP Existence. This comprehensive validation process enhances the chances of successful email delivery.

Standalone PHP Source Code for Simplicity:

Simplicity in deployment is a key consideration for businesses. VeryUtils PHP Batch Email Sender operates without the need for a database, using standalone PHP source code and simple text files. This simplicity contributes to easy deployment and management.

Dedicated Support for Continuous Assistance:

The journey of email marketing is dynamic, and challenges may arise. VeryUtils PHP Batch Email Sender provides access to 24/7 dedicated email experts ready to assist with any queries or concerns. This continuous support ensures a smooth and reliable experience for marketers.

Custom Development Services for Tailored Solutions:

Recognizing that businesses may have unique requirements, VeryUtils offers custom development services. This allows marketers to tailor the application further, ensuring it aligns perfectly with their specific needs and goals.

✅ Conclusion:

VeryUtils PHP Batch Email Sender emerges as a comprehensive solution for businesses aiming to master their email marketing campaigns. With its array of features, customization options, and dedicated support, the application positions itself as a versatile tool capable of addressing the diverse needs of marketers. Elevate your email marketing efforts with the power and flexibility of VeryUtils PHP Batch Email Sender.

[beproblemsolver]

Send Emails with PHP SMTP PHPMailer

To send emails with PHP SMTP PHPmailer is vital in most backend projects we develop. Situations will arise when the mail() function won’t sufficient. Let’s Learn to use PHPMailer with Gmail SMTP.

Read More: https://beproblemsolver.com/send-emails-with-php-smtp-phpmailer/

[duson250]

Send email using PHPMailer in Laravel 8

[mustafabukulmez-blog]

HTML Template Kullanarak PHP Mail Gönderme

HTML Template Kullanarak PHP Mail Gönderme

Merhaba, bu yazımda HTML Template Kullanarak PHP Mail Gönderme konusuna değineceğiz. Bunu yaparken de template içerisinde bazı anahtarlar bırakarak bu işlemi daha dinamik hale getireceğiz.   HTML Template Kullanarak PHP Mail Gönderme İlk olarak söylemem gerekiyor ki bu yazıda mail gönderme işlemini paylaşmayacağım. Burada başarılı bir şekilde mail gönderebildiğinizi varsayacağım. Eğer henüz mail…

[thecampcodes]

Tutorial: How to Send Email To Gmail Using PHPMailer in PHP About How to Send Email To Gmail Using PHPMailer in PHP This is a tutorial on How to Send Email To Gmail Using PHPMailer in PHP. PHP is a server-side scripting language designed primarily for web development. Using PHP, you can let your user directly interact with the script and easily to learned its syntax. It is mostly used by a new... https://bit.ly/2P8coSn

[codetru]

Known for its versatility, open-source, and flexibility, PHP is one of the most commonly used scripting languages. If you are hanging tight to the wave of digital transformation, you will need to make changes to your website.

[sandhyamodi]

How to send email in PHP ?

We can use php builtin function mail() to send email. This is very simple and easy to use function. The following code shows an example of sending email from contact us form on a web site : $name=$_POST; $email=$_POST; $subject = $_POST; $query=$_POST; $message = $name.' '; $message .= $email.' '; $message .= $subject.' '; $message .= $query.' '; $to_email = 'info@techcafe4u.in'; $from_email="query@techcafe4u.in"; $dt=date("Y-m-d"); $headers = "MIME-Version: 1.0" . "\r\n"; $headers .= "Content-type:text/html;charset=UTF-8" . "\r\n"; $headers .= 'From: '.$from_email; mail($to_email,"Enquiry from techcafe4u.in",$message,$headers); As above code , you can see usage of php mail() function but it does not provide many popular features such as encryption & smtp authentication so for that we can use PHPMailer. The PHPMailer is a full-featured email sending class, I will create a separate post for usage of phpmailer. Read the full article