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.

Fumiki Takahashi

Hametuha INC.

This plugin enables you to send emails to each of your users. 
No more long to or BCCs.
<h4>Features</h4>
<ul>
<li>Use SMTP API to send emails. This affects all PHP Mailer in <code>wp_mail()</code> functions, 
so you can use this plugin with other mail-delivering plugins like WooCommerce and Form plugins.</li>
<li>User contact email.</li>
<li>HTML SendGrid email Template.</li>
<li>Override default email functions.</li>
<li>Marketing Email creator</li>
<li>Periodical Email(experimental)</li>
</ul>
<h4>Enter API Key</h4>
You need <a href="https://sendgrid.com/docs/Classroom/Send/How_Emails_Are_Sent/api_keys.html" rel="nofollow ugc">SendGrid API Key</a>.
For more details, go to hamail setting screen.

Hamail – Send Email via SendGrid

A WordPress plugin to send contact mail to your users via Sendgrid.

Email Override for SendGrid vs Hamail – Send Email via SendGrid