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.

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.

Hamail – Send Email via SendGrid vs Email Override for SendGrid