Changelog
New features, improvements, and fixes shipped to MailShield.
Deliverability Tester Rename and Logo Fixes
The Inbound Mail Tester is now called the Deliverability Tester, and reporter logos in the reports viewer load reliably again.
- Rename the Inbound Mail Tester to Deliverability Tester to better reflect what it does: testing how your outbound email is scored by receiving servers
- Fix reporter and domain logos failing to load in the DMARC and TLS report viewers
- Retry failed logo lookups within an hour instead of caching the failure for 30 days
Redesigned App Navigation and Dashboard
A redesigned app shell with sidebar navigation, a clearer dashboard that surfaces what needs attention, and simplified domain pages.
- Add a collapsible sidebar with grouped navigation replacing the top bar
- Show a Needs Attention panel on the dashboard that links straight to the fix
- Simplify domain pages into Overview, Checks, Reports, and Settings tabs
- Add breadcrumbs and a prioritized Next Steps list on each domain overview
- Improve status badges, empty states, and dark mode consistency across the app
Customers Replace Domain Groups
Domain groups are now customers, making it clearer how to organize domains per customer for filtering, reports, and billing.
- Rename clients and domain groups to customers across the app
- Assign each domain to a customer and filter or group the domain list by customer
- Scope white-label PDF reports and scheduled reports to a customer
- Show the billing breakdown and CSV export per customer
Inactive Free Account Cleanup
Free organizations are now only deleted after 90 days without any sign-in, with a 14-day email warning that any login cancels.
- Base account deletion on sign-in activity instead of quota lockouts
- Send a deletion warning email 14 days before removal
- Cancel a scheduled deletion automatically when anyone signs in
- Fix the cleanup job so it runs reliably
Per-Client Billing Breakdown Export
See how your subscription cost splits across your domain groups and export it for pass-through invoicing to clients.
- Add a per-client breakdown table on the billing page for per-domain (Pro) plans
- Show active and passive domain counts with an estimated monthly cost per group
- Download the breakdown as a CSV for pass-through invoicing
- Allocate graduated pricing across clients at a blended per-domain rate
Email Volume Limit Notifications
Get a heads-up before you hit your monthly email volume limit, and see clearly when reports are gated.
- Send a soft-tone email to the org owner at 80% of monthly volume
- Send a follow-up email at 100% with an upgrade prompt
- Each notification is sent at most once per calendar month per organization
- Report viewing now pauses at 100% of the limit instead of 120%
- DMARC and TLS alert emails include an upgrade footer when the org is over its limit
Webhook, PagerDuty, and Datadog Notifications
Send alerts directly to your ops stack — generic webhooks, PagerDuty incidents, and Datadog events.
- Add generic JSON webhook channel with optional shared-secret header
- Add PagerDuty channel using Events API v2 for incident routing
- Add Datadog channel for posting events with US and EU site support
Passkey Authentication
Sign in instantly with passkeys — no email link required.
- Add passkey login as an alternative to magic links
- Register and manage passkeys from account settings
- Support for synced passkeys across devices (iCloud Keychain, Google Password Manager, etc.)
- Secure WebAuthn-based authentication with no passwords or codes
Dashboard Navigation Redesign & Bulk Import
Redesigned domain navigation with pill-style tabs, added bulk domain import, PDF score reports, and command palette for quick navigation.
- Add pill-style sub-navigation for domain detail pages
- Add bulk domain import for onboarding multiple domains at once
- Export domain security score reports as PDF
- Command palette for quick navigation across the dashboard
- Loading skeletons across all dashboard pages for smoother transitions
Date Range Filters & Activity Sparklines
Filter reports by custom date ranges and see domain activity at a glance with new sparkline charts.
- Date range picker in report filters using calendar UI
- Activity sparklines replace fail rate charts on the domains list
- Page size selection for DMARC and TLS report viewers
- Report pagination controls for easier browsing
Report File Import
Import historical DMARC and TLS-RPT report files with drag-and-drop upload, automatic domain matching, and deduplication.
- Drag-and-drop upload for DMARC and TLS-RPT XML/JSON files
- Automatic domain matching to existing monitored domains
- Duplicate report detection to prevent double-counting
- Server-side pagination and SQL-based filtering for report lists
DMARC & TLS Report Viewer
Drill into DMARC and TLS reports with filtering, volume charts, and detailed record views.
- DMARC report viewer with filtering by domain, date range, reporter, and status
- Volume chart showing DMARC report trends over time
- Detailed record-level view for individual DMARC reports
- TLS report viewer with policy results and failure details
Domain Stats Dashboard
At-a-glance stats above your domain list showing emails monitored, domain count, average security score, and DMARC compliance rate.
- Stats row with emails monitored, domain count, avg score, and compliance rate
- Stats reflect the entire organization regardless of group or tag filters
- Free plan email volume limit updated to 250/month
- Plan tier limits aligned with current pricing
Reliability Fixes
Fixed false TLS alerts from transient connection failures and corrected date handling in cleanup jobs.
- TLS/DANE changes only reported when MX records themselves changed
- Replaced brittle error-string matching with data-driven probe state checks
- Fixed date format in stale user cleanup queries for proper database compatibility
Domain Groups & Tags
Organize your domains with custom groups and color-coded tags for better management at scale.
- Create domain groups to organize related domains together
- Add custom tags with colors to any domain
- Filter and search domains by group or tag
- Grouped view option in the domains list
Anti-Spam & Account Security
Strengthened account security with invisible CAPTCHA, rate limiting, and self-service account deletion.
- Invisible CAPTCHA challenge on login to prevent abuse
- Rate limiting on authentication endpoints
- Self-service account deletion from settings
- Automatic cleanup of stale unverified accounts
Email Volume Monitoring
Track email volume across your domains with plan-based limits and usage dashboards.
- Email volume tracked from DMARC aggregate reports
- Volume-based limits per plan tier
- Usage dashboard for administrators
- Consolidated pricing: Free, Starter, Pro, and Business plans
Notification Channels
Get alerts where your team already works: Telegram, Slack, Discord, and more.
- Connect Telegram, Slack, Discord, or custom webhooks
- Per-channel notification preferences
- Test notifications before going live
- Available on Starter plans and above
DANE & DNSSEC Scoring
DANE and DNSSEC validation now contribute to your domain's security score.
- DANE TLSA record validation integrated into scoring
- DNSSEC chain of trust verification
- Score breakdown shows DANE/DNSSEC contribution
- Improved BIMI logo content validation
DMARC Report Viewer
Drill into individual DMARC reports with full record details, IP enrichment, and authentication results.
- View every record in a DMARC aggregate report
- IP addresses enriched with country flags and ASN info
- Direct links to bgp.tools for network investigation
- Detailed SPF, DKIM, and DMARC authentication results per record
Real-Time DNS Checks
DNS check results now stream in real time via server-sent events for a faster, more responsive experience.
- Results appear as each check completes, no more waiting for all eight
- Retry logic and timeouts prevent false alerts from transient DNS failures
- BIMI logos migrated to SVG Tiny PS format for better compatibility
- DKIM verification improvements for split TXT records and Ed25519 keys
Scheduled Reports & DMARC Recommendations
Schedule recurring email reports and get DMARC policy recommendations tailored to how you use each domain.
- Schedule daily, weekly, or monthly email reports per domain
- Dynamic DMARC policy recommendations based on domain usage type
- IPv6 CIDR support in SPF mechanism display
- Improved DKIM signature verification accuracy
REST API & Access Tokens
Integrate MailShield into your workflows with our REST API. Create tokens, set IP allowlists, and monitor usage.
- Create and manage API tokens with optional IP allowlists
- API access logging with detailed request/response tracking
- Token activity dashboard with filtering
- Available on Pro plans and above
Billing & Subscription Plans
Flexible subscription plans with Stripe integration. Upgrade, downgrade, or switch billing cycles anytime.
- Four plans: Free, Starter, Pro, and Business
- Monthly and annual billing with up to 20% savings
- Domain and team member limits per plan
- Granular domain usage type support for accurate scoring
Inbound Mail Tester
Send a test email to MailShield and get a detailed deliverability analysis with a 100-point quality score.
- 100-point email quality scoring system
- SPF, DKIM, and DMARC authentication verification
- Blocklist and reverse DNS checks
- Auto-discovery of DKIM selectors from test emails
- Test history so you can track improvements
MTA-STS Hosting
MailShield hosts your MTA-STS policy so you can enforce encrypted email delivery. Just add two DNS records.
- Fully hosted MTA-STS policies, no web server required
- Start in testing mode, upgrade to enforce when ready
- Auto-detection of MX hosts from your latest check
- Built-in DNS verification and monitoring
Security Scoring & SPF Checker
Launch of the domain security scoring system and public SPF record checker tool.
- Domain security score across all eight email protocols
- Score breakdown by protocol with improvement suggestions
- Public SPF checker tool for any domain's SPF record
- Parked domain detection with null MX support
- Perfect score celebration animation