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.

Valentin Bora

Are your contact form emails disappearing? Customers not getting order confirmations? Password reset emails never arriving?
This plugin helps you find out why. It checks whether your domain is set up correctly for email, and then goes a step further: it sends a real test email from your site and tells you exactly what inbox providers like Gmail and Outlook see when your email arrives.
Most email tools, even ones with a “send test email” button, only confirm the message left your site by delivering it to your own inbox. But a letter mailed to your own house always arrives; that tells you nothing about whether a customer’s inbox would accept it. This plugin sends a real test email to an independent grader that reads what actually arrived, and tells you exactly what Gmail and Outlook see: whether you pass SPF, DKIM and DMARC, which service delivered it, and whether your sending address is blacklisted.
<h4>What you’ll learn</h4>
Is your domain set up for email?
<ul>
<li>Can inbox providers verify your emails are real (SPF)</li>
<li>Do your emails carry a digital signature (DKIM)</li>
<li>Are fake emails pretending to be you getting blocked (DMARC)</li>
<li>Can your domain receive email (MX records)</li>
<li>Which email service your domain uses</li>
</ul>
Do your emails actually pass security checks?
Send a real test email from your site and see what happens when it arrives:
<ul>
<li>Does it pass the sender verification check</li>
<li>Is the digital signature valid</li>
<li>Does it pass the anti-spoofing check</li>
<li>Does the sender address match your domain</li>
<li>Which service actually delivered the email (Google, SendGrid, Amazon SES, and others)</li>
</ul>
<h4>More features</h4>
<ul>
<li>Works with any email setup – whether you use an SMTP plugin (WP Mail SMTP, Post SMTP, FluentSMTP, etc.) or your host’s built-in email, this plugin tests whatever your site actually uses to send mail</li>
<li>Site Health integration – email checks appear on your WordPress Site Health screen alongside your other site diagnostics</li>
<li>Weekly monitoring – get an email notification if your domain’s email records change unexpectedly</li>
<li>Email report – send yourself a summary of the results to share with your developer or hosting provider</li>
<li>Score out of 10 – a simple score that tells you how your email setup compares to best practices</li>
</ul>
<h4>How it works</h4>
<ol>
<li>Activate the plugin and go to Tools > Does My Email Work</li>
<li>Click “Check my domain” — the plugin checks your domain’s public email records (the same records Gmail and Outlook already see when you send email)</li>
<li>The check then automatically sends a test email from your site so the service can see what inbox providers would receive</li>
<li>Get a clear report of what’s working and what needs attention</li>
</ol>
<h4>External Services</h4>
This plugin connects to the following external services to perform its diagnostic functions:
doesmyemail.work API 
Used to look up your domain’s public email records and process test email results. For the record lookup, the plugin sends your site’s domain name to this service. Email reports are generated and sent locally by the plugin – no email addresses are transmitted to this service.
When you choose to run a deep check, your site sends a test email to a unique address at doesmyemail.work, and also sends the public DNS records (SPF, DKIM, DMARC, and MX) the plugin already collected for your own domain, so the service can correlate them with the received email. The email’s routing and authentication metadata (From address, Return-Path, sending IP, detected mail service, SPF/DKIM/DMARC results, DKIM key strength, and sending-IP blacklist status) is analyzed and stored for up to 7 days, then automatically deleted. No email body content is stored or read.
<ul>
<li>Service operated by Mach10 (mach10.pro)</li>
<li><a href="https://doesmyemail.work/terms/" rel="nofollow ugc">Terms of Use</a></li>
<li><a href="https://doesmyemail.work/privacy/" rel="nofollow ugc">Privacy Policy</a></li>
</ul>
Cloudflare DNS (used by the doesmyemail.work service) 
The DNS record lookups happen on the doesmyemail.work servers, which use Cloudflare’s public resolver (1.1.1.1) to query your domain’s SPF, DKIM, DMARC, and MX records. Your WordPress site does not contact Cloudflare directly; it only connects to doesmyemail.work. No personal data beyond your domain name is involved.
<ul>
<li><a href="https://www.cloudflare.com/privacypolicy/" rel="nofollow ugc">Cloudflare Privacy Policy</a></li>
<li><a href="https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver/" rel="nofollow ugc">1.1.1.1 resolver commitment</a></li>
</ul>

Does My Email Work – Email Deliverability Test

Email deliverability test for WordPress. See if your emails reach the inbox or land in spam, and exactly what Gmail and Outlook receive.

SMTP Manager by ByteCore Stack vs Does My Email Work – Email Deliverability Test