bytecorestack

SMTP Manager by ByteCore Stack replaces the default WordPress mail function with a fully configurable SMTP connection. Every outgoing email is logged with its delivery status, and an optional health-check cron job monitors your SMTP server and alerts your team on Slack or Microsoft Teams the moment delivery starts failing.
Features
<ul>
<li>Custom SMTP host, port, and encryption (SSL / TLS / none)</li>
<li>Compatible with Gmail App Passwords, Outlook / Office 365, and any standard SMTP provider</li>
<li>Custom From name and From email address</li>
<li>Full email log — date, subject, sender, recipient, status, and error message</li>
<li>Searchable and filterable log with date-range presets (today through all time)</li>
<li>CSV export of the email log</li>
<li>Automated SMTP health monitoring via WordPress Cron (TCP-only, no email sent)</li>
<li>Slack and Microsoft Teams webhook alerts on consecutive SMTP failures</li>
<li>Configurable failure threshold and maximum notification count</li>
<li>One-click “Send Test Email” to verify your SMTP configuration instantly</li>
<li>Scheduled HTML email delivery reports (daily / weekly / monthly)</li>
<li>Automatic log pruning — keep the last 30 days or the last 1,000 records</li>
<li>Dark-mode admin UI</li>
</ul>
<h3>External Services</h3>
This plugin may contact the following external services. All connections are either user-initiated or require explicit configuration by the site administrator.
1. Your SMTP server (user-configured) 
The plugin routes all WordPress emails through the SMTP server credentials you enter in Settings → SMTP Manager. The hostname, port, username, and password are provided entirely by you. No data is sent to any ByteCore Stack server.
2. Slack Incoming Webhooks (optional) 
If you enable Slack alerts, the plugin will POST a JSON failure notification to the Slack Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Slack workspace and is created by you. 
* Service: Slack Technologies, LLC 
* Privacy policy: https://slack.com/privacy-policy 
* Terms of service: https://slack.com/terms-of-service
3. Microsoft Teams Incoming Webhooks (optional) 
If you enable Teams alerts, the plugin will POST a JSON failure notification to the Teams Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Teams channel and is created by you. 
* Service: Microsoft Corporation 
* Privacy policy: https://privacy.microsoft.com/en-us/privacystatement 
* Terms of service: https://www.microsoft.com/en-us/servicesagreement
4. Google Fonts API 
The admin settings page loads two typefaces (DM Sans and DM Mono) from the Google Fonts API to render the admin UI. This request is made only by the administrator’s browser when visiting the plugin settings page. No personal data from site visitors is ever transmitted. 
* Service: Google LLC 
* Privacy policy: https://policies.google.com/privacy 
* Terms of service: https://policies.google.com/terms 
* Font API endpoint: https://fonts.googleapis.com/
No data is collected, transmitted to, or processed by ByteCore Stack servers.

SMTP Manager by ByteCore Stack

Send WordPress emails via SMTP. Logs deliveries, monitors SMTP health via WP-Cron, and alerts on Slack or Microsoft Teams when sending fails.

Oderland Webbhotell AB

Oderland SMTP & Postal Mailer is a plugin that allows you to send transactional emails using <a href="https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol" rel="nofollow ugc">SMTP</a> or <a href="https://docs.postalserver.io/" rel="nofollow ugc">Postal</a> API. Easy-to-use for e-mail logging and making sure your e-mails make it all the way to your intended target.
The plugin works with any SMTP mailer you’re using, including but not limited to <a href="https://www.oderland.se/postal" rel="nofollow ugc">Oderland Postal</a>.
What is SMTP and why do you need it?
SMTP (Simple Mail Transfer Protocol) is the standard that ensures that emails actually arrive at their destination. It’s a protocol that delivers your email between servers when you click “send” in your email client.
You could say that with an SMTP plugin or service, you want to confirm to the email servers that what you’re sending isn’t spam, which lends authenticity to your mailings.
Features:
<ul>
<li>Send transactional emails via SMTP, Postal API or PHP mail()</li>
<li>Multiple mail account support with priority-based failover</li>
<li>Automatic retry on temporary failures with exponential backoff</li>
<li>Comprehensive email logging with configurable retention</li>
<li>Statistics dashboard — email volume over time, delivery success rates, per-account breakdown, failure analysis, recipient domain insights, and send time patterns</li>
<li>CSV export of all dashboard statistics</li>
<li>WordPress admin dashboard widget with 7-day email summary</li>
<li>Engagement tracking (opens, clicks) for Postal accounts</li>
<li>Postal webhook integration for delivery status tracking</li>
<li>Per-account webhook debug logging for Postal accounts</li>
<li>Secure credential storage with AES-256 encryption</li>
<li>Protocol-level SMTP debugging</li>
</ul>
Services Supported:
<ul>
<li>SMTP – Connect to any SMTP server</li>
<li><a href="https://docs.postalserver.io/" rel="nofollow ugc">Postal</a> – Integration with Postal mail delivery platform</li>
<li>Local – Fallback to PHP mail() function</li>
</ul>

Oderland SMTP & Postal Mailer

Send transactional emails from WordPress using SMTP or Postal with logging and delivery tracking.

SMTP Manager by ByteCore Stack vs Oderland SMTP & Postal Mailer