nonletter

This plugin enables you to create simple forms for subscription to your newsletter. It includes a sidebar widget with customizable fields (up to 16) to gather from your users all the information you need for your email marketing campaigns. Users can also use the form to unsubscribe.
From the options pages you can:
<ul>
<li>choose whether you require a double opt-in (users must follow a link in an email message, in order to complete subscription)</li>
<li>specify name and number of text fields in the form</li>
<li>customize text messages and labels</li>
<li>manage subscribed email addresses</li>
<li>donwload PDF file with list of subscribers</li>
<li>download CSV file with list of subscribers</li>
<li>choose whether you want to download all subscribers or only new subscribers</li>
</ul>
<h4>Related features</h4>
(Un)subscription requests can be directly processed by <a href="https://www.sendblaster.com" title="bulk email software" rel="nofollow ugc">SendBlaster bulk email software</a> :
<ul>
<li><a href="https://www.sendblaster.com/free-bulk-emailer-download/" title="bulk email software download" rel="nofollow ugc">download SendBlaster here</a></li>
</ul>
<h4>Plugin Features</h4>
<ul>
<li>Subscribe new members</li>
<li>Unsubscribe existing members</li>
<li>Stores subscribed email addresses (as a useful backup against mail delivery failures)</li>
<li>Purges old email addresses</li>
<li>Customizable sidebar appearance</li>
<li>Customizable texts and labels</li>
<li>Adds to your form up to 5 custom fields</li>
</ul>
<h4>Plugin Options</h4>
<ul>
<li>E-mail address for managing subscriptions</li>
<li>Message to subscriber – subject</li>
<li>Message to subscriber – content</li>
<li>Double Opt-in</li>
<li>Link Love (enable and disable)</li>
<li>Front side messages</li>
<li>Front side appearance and custom fields</li>
<li>Temporary db of newly subscribed members</li>
<li>Automatic temporary db cleanup</li>
</ul>

Newsletter subscription optin module

Plugin for managing subscriptions to a mailing list. It provides a simple form for subscription to your mailing list through single or double opt-in.

edubrazeal

Edu Bulk Emailer is a powerful and easy-to-use plugin that allows you to send HTML emails in bulk directly from your WordPress admin. It’s perfect for sending newsletters, updates, or announcements to your subscribers.
Stop struggling with server sending limits or complex third-party services. Manage everything right inside WordPress. This plugin uses a robust email queue to send your campaigns in small batches over time, ensuring high deliverability and protecting your server’s reputation.
Key Features:
<ul>
<li>Email Queue System:
<ul>
<li>Batch Processing: Automatically sends emails in small batches using WP-Cron to avoid server timeouts and sending limits.</li>
<li>Queue Dashboard: A live-updating dashboard shows how many emails are pending, sent, or have failed.</li>
<li>Active Jobs Management: Track the real-time progress of each bulk send (job).</li>
<li>Job Controls: Cancel pending jobs, retry all failed emails for a specific job, or delete completed jobs from the queue.</li>
<li>Delayed Sending: Schedule a bulk send to start after a specific delay.</li>
</ul>
</li>
<li>Send HTML Emails: Use the built-in WordPress visual (TinyMCE) editor to craft beautiful, media-rich emails.</li>
<li>Multipart Support: Automatically sends both HTML and plain-text versions of your email for maximum compatibility with all email clients.</li>
<li>Multiple Recipient Options:
<ul>
<li>Paste a comma-separated list of emails.</li>
<li>Upload a CSV file with emails in the first column.</li>
</ul>
</li>
<li>Email Template Manager:
<ul>
<li>Save your email designs (both HTML and plain-text) as templates.</li>
<li>Load, edit, or delete saved templates with a single click.</li>
</ul>
</li>
<li>Sent Email Logs:
<ul>
<li>A complete history of all completed bulk sends.</li>
<li>See the subject, date, and final counts for successful and failed sends.</li>
<li>Resend: Quickly add any past email campaign back to the queue.</li>
<li>Delete: Clean up your log history.</li>
</ul>
</li>
<li>Configurable Settings:
<ul>
<li>Control the number of emails per batch.</li>
<li>Set the time interval between batches (e.g., 50 emails every 5 minutes).</li>
<li>Define the maximum number of retry attempts for failed emails.</li>
</ul>
</li>
<li>Clean & Secure: Built following all WordPress coding standards, including nonces, sanitization, and enqueued assets.</li>
</ul>

Edu Cron Bulk Emailer

Send beautiful HTML emails in bulk from your WordPress dashboard using a reliable queue system.

Newsletter subscription optin module vs Edu Cron Bulk Emailer