BaiatuLuTata

This plugin overrides the default WordPress email sending function with SendGrid’s Mail Send API.
Key Features:
<ul>
<li>Toggle Email Override for SendGrid on/off</li>
<li>Enter your SendGrid API key</li>
<li>Customize the “From” email and name</li>
<li>Send a test email directly from the settings page</li>
<li>Clean and native WordPress admin UI</li>
</ul>
<h3>External Services</h3>
This plugin integrates with the <a href="https://www.sendgrid.com/" rel="nofollow ugc">SendGrid</a> email delivery service to send outgoing emails via its API instead of the default <code>wp_mail()</code> function.
When enabled, the plugin communicates with the following SendGrid API endpoint: https://api.sendgrid.com/v3/mail/send
Data sent to SendGrid includes: 
– Sender name and email 
– Recipient email(s) 
– Email subject 
– Message body (text or HTML) 
– Optional headers (Cc, Bcc)
The plugin requires a valid SendGrid API key to function. This credential is stored in your WordPress database and used only to authenticate API requests to SendGrid.
Privacy Notice: 
By using this plugin, you agree to SendGrid’s <a href="https://www.sendgrid.com/terms-of-service/" rel="nofollow ugc">Terms of Service</a> and <a href="https://www.sendgrid.com/privacy-policy/" rel="nofollow ugc">Privacy Policy</a>. Ensure your use of SendGrid complies with local privacy laws and your own data protection policies.

Email Override for SendGrid

Replaces WordPress wp_mail() with SendGrid's API. Adds a settings page to manage API key, sender info, and test email functionality.

arianKhosravi

NorikDavtian

Overwrites the native wp_mail function and uses sendgrid servers to send emails.
For a complete list of SendGrid features visit <a href="http://sendgrid.com" rel="nofollow ugc">SendGrid</a>
Here is list of features provided by SendGrid
Save Time, Resources and Money
SendGrid helps you focus on your business without the cost and complexity of owning and maintaining an email infrastructure. SendGrid manages all of the technical details from scaling the infrastructure to ISP outreach and reputation monitoring to whitelist services and real time analytics. Save time, resources, and money by focusing your engineering resources on your business and leave the technical work to SendGrid.
Messages That Reach the Inbox
On average 20% of legitimate emails never reach the inbox. For your business, that means lower customer satisfaction, lost customers and less revenue. SendGrid offers world class deliverability expertise to make sure your emails get delivered. SendGrid handles ISP monitoring, DKIM, domain keys, SPF, feedback loops, whitelabeling, link customization and more. SendGrid even offers unique IP addresses so that you can maintain complete control of your own email reputation.
Integrate in Minutes, Not Weeks
Whether you’re sending transactional or marketing emails, SendGrid has an API to make custom integration a breeze. Choose from an SMTP API, Web API, Event API, and more. Or, integrate in merely minutes via a simple SMTP relay. You’ll be sending emails in no time.
Actionable, Real Time Analytics
Drive solid business decisions with precise analytics on your email campaigns. Easily categorize separate email campaigns and track statistics down to the email address. Track requests, delivered, bounces, repeat bounces, spam reports, repeat spam reports, invalid email requests, open tracking, unique open tracking, click tracking, unique click tracking, unsubscribe tracking and blocks. All stats are available via our website dashboard or customizable through our Event and/or Web APIs.
Help When You Need It
SendGrid offers support via phone or live chat during weekdays from 7am to 7pm (Mountain Time) with critical incident support available 24/7. Self-support is also available through extensive documentation, an online knowledge base, and an active support community at SendGrid.com
Incredibly Scalable Infrastructure
Whether you’re sending 100 emails or billions of emails per month, SendGrid’s infrastructure is ready to scale and meet the demand at any moment. SendGrid currently sends over 5 billion emails per month for tens of thousands of companies. We’re ready to make your scalability problems a thing of the past.

Big Mailer – SendGrid

Overwrites the native wp_mail function and uses sendgrid servers to send emails

Email Override for SendGrid vs Big Mailer – SendGrid