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.

chillichalli

“Why didn’t I get your email?”
Sound familiar? WordPress email failures are silent killers:
<ul>
<li>Password resets never arrive → frustrated users</li>
<li>Order confirmations go missing → support tickets pile up</li>
<li>Contact form submissions vanish → lost leads and revenue</li>
</ul>
Most site owners don’t know their emails are failing until customers complain. By then, the damage is done.
DeliverScope gives you complete visibility into your WordPress email system.
<h4>Free Features</h4>
<ul>
<li>SMTP Configuration – Easy setup for Gmail, SendGrid, Mailgun, and any SMTP provider</li>
<li>Connection Tester – Verify your SMTP credentials work before saving</li>
<li>Test Emails – Send a real email to confirm end-to-end delivery</li>
<li>Email Logging – Track every email with timestamps, status, and latency</li>
</ul>
<h4>Pro Features</h4>
<ul>
<li>DNS Health Check – Instant SPF & DMARC analysis to improve deliverability</li>
<li>Scheduled Canary Tests – Automated emails every 5-60 minutes catch failures instantly</li>
<li>Instant Alerts – Get notified via Slack or custom webhook when emails fail</li>
<li>Blacklist Monitoring – Daily checks against 6 major DNSBLs (Spamhaus, Barracuda, SpamCop, etc.)</li>
<li>Priority Support – Direct access to our team when you need help</li>
</ul>
<h4>Plan Comparison</h4>
Free (1 site) 
✓ SMTP configuration, connection tester, test emails, email logging
Personal – $49/year (1 site) 
✓ Everything in Free 
✓ DNS health checks 
✓ Scheduled canary tests (5-60 min) 
✓ Instant alerts (Slack/webhook) 
✓ Priority support
Agency – $99/year (5 sites) or $199/year (unlimited) 
✓ Everything in Personal 
✓ Blacklist monitoring
<h4>Why DeliverScope?</h4>
vs. Default WordPress email: wp_mail() fails silently. No logs, no alerts, no way to know something’s wrong.
vs. Other SMTP plugins: Most plugins only configure SMTP. DeliverScope monitors it and alerts you to problems.
vs. External services: No complex setup or monthly fees. DeliverScope lives inside WordPress where your emails originate.
<h4>Works With Any Email Provider</h4>
<ul>
<li>Google Workspace / Gmail</li>
<li>Microsoft 365 / Outlook</li>
<li>SendGrid, Mailgun, Postmark</li>
<li>Amazon SES</li>
<li>Any SMTP server</li>
</ul>

DeliverScope

Stop losing customers to undelivered emails. Monitor your WordPress email system and know the moment something breaks.

SMTP Manager by ByteCore Stack vs DeliverScope