dominikshaim

SmartMailer connects your WordPress site to the SmartMailer.cz e-mail marketing service. Once configured, new contacts are sent to your SmartMailer address book automatically, at the moment they are created on your site. No cron job is required.
Contacts are collected from:
<ul>
<li>WordPress – new user accounts and comment authors</li>
<li>WooCommerce – customers from new orders (billing name and e-mail)</li>
<li>Contact Form 7 – submitted form entries (with per-form field mapping)</li>
<li>WPForms – submitted form entries (with per-form field mapping)</li>
</ul>
Each integration is opt-in and disabled by default. Nothing is transmitted until you enter a valid API token and turn an integration on.
Contacts are not sent retroactively — only from the moment you set the plugin up. To import existing WordPress and WooCommerce contacts, the plugin can generate a CSV file that you import in the SmartMailer administration.
This plugin requires a SmartMailer.cz account. SmartMailer.cz is a third-party service; see the External services section below.
<h3>External services</h3>
This plugin connects to the SmartMailer.cz e-mail marketing service to synchronise your contacts. The connection is required for the plugin’s core functionality.
When an integration is enabled, the plugin sends contact data — first name, last name and e-mail address — to the SmartMailer API at the moment a contact is created on your site (a user registers, a comment is posted, a WooCommerce order is placed, or a Contact Form 7 / WPForms form is submitted). Requests are made over HTTPS and authenticated with the API token you enter in the settings.
No data is sent until you enter a valid API token and enable at least one integration. The CSV export feature generates a file for download in your browser and does not transmit data to SmartMailer.
<ul>
<li>Service provider: SmartMailer.cz — https://smartmailer.cz</li>
<li>API endpoint: https://smartmailer.cz/api/v1/</li>
<li>Terms of Service: https://smartmailer.cz/obchodni-podminky</li>
<li>Privacy Policy: https://smartmailer.cz/zasady-ochrany-osobnich-udaju</li>
</ul>

SmartMailer

Connect WordPress and WooCommerce to the SmartMailer.cz e-mail marketing service. Contacts are synchronised automatically as they are created.

zebfross

Contact Manager for SendGrid lets you automatically add new users to a specific SendGrid list. It also integrates with wpforms to add contacts to SendGrid from any form.
<h4>Privacy Policy & Terms of Service</h4>
I don’t use or even receive any data from this plugin, and you can use it however you want.
<h3>Usage Instructions</h3>
You will need a SendGrid API Key which can be found on the SendGrid dashboard under Settings -> API Keys.
Once you’ve downloaded and installed this plugin on your site, go to the Settings -> Contacts for SendGrid submenu to set your SendGrid API Key.
If you want to add users to a SendGrid list from a WPForms form, open the WPForms form and click on Settings -> SendGrid to specify your list and to map fields.
If you want to add new users to a list (like Subscribers), you can enable that option and choose which SendGrid list to add them to.
<h3>Actions and Filters</h3>
cmfs-add-on-register – This lets you customize when to add new users to your SendGrid contacts. You could use this to only add new users in a specific role. 
cmfs-register-list – This lets you customize which list new users are added to. You could use this to change the list based on user role.
<h3>Contact</h3>
zebfross@hotmail.com

Easily integrate SendGrid with your WordPress site

Contact Manager for SendGrid lets you automatically add new users to a specific SendGrid list.  It also integrates with wpforms to add contacts to Sen …

SmartMailer vs Easily integrate SendGrid with your WordPress site