Deliverability

Know Why Cold Email Lands, Bounces, or Hits Spam

See inbox placement by provider, bounce reasons, sender health, and domain issues across the senders you actually use.

Sender Health
Inbox Placement
Bounce Reasons
Reply Labels
Domain Checks
At-Risk Senders
Email Validation
Placement Test
Gmail
Outlook
Yahoo
iCloud
Inbox
Spam
Missing
Auto-schedule:
Placement Testing

See Where Your Emails Land Before Volume Ramps

Automated placement tests run on your actual senders using proprietary seed mailboxes. See inbox vs. spam vs. missing rates across Gmail, Outlook, Yahoo, and more.

  • Auto-schedule on 7, 14, or 30-day intervals
  • Per-sender placement health, so you know who needs attention
  • Built into the same place you manage sending
AI Categorization

Know the Reason Behind Every Bounce

AI categorizes every bounce (bad addresses, server blocks, temp failures, rate limits) and every reply (interested, meeting, OOO, unsubscribe). You can see whether the issue is list quality, sender reputation, or a temporary block.

  • 4-tier bounce system with 9 specific sub-types
  • Reply intent and sentiment classification
  • Auto-actions: unsubscribes removed, OOO paused, webhooks fired
john@invalid-domain.com
Domain not found
sara@bigcorp.com
Policy rejection
mike@startup.io
Auto-handled
lisa@company.co
Mailbox not found
Domain Healthoutreach.acme.com
SPF
Record valid
DKIM
Properly signed
DMARC
Not configured
MX
Records found
rDNS
Matches
Blacklist
Clean
Sender Health
alex@outreach.acme.com
sarah@sales.acme.com
mike@outreach.acme.com
lisa@sales.acme.com
Domain & Sender Health

Catch Domain and Sender Issues Early

DNS checks and sender health monitoring show which domains or senders need attention before they hurt inbox placement.

  • SPF, DKIM, DMARC, MX, rDNS, and blacklist status checked
  • One-click resolve buttons with step-by-step guidance
  • At-risk senders flagged before they damage deliverability
Email Validation

Validate Emails Before They Touch Your Sender Pool

Bad lists burn sender reputation fast. SuperSend validates addresses before campaigns go out, catches hard-bounce risk early, and helps protect the dedicated infrastructure you are sending from.

Validate emails before they touch your sender pool

Catch invalid addresses before they create bounces

Protect sender reputation across high-volume sends

FAQs

Common questions about deliverability monitoring.

See What Is Hurting Deliverability

Request a demo to see placement testing, bounce reasons, sender health, and domain checks on real sending infrastructure.

Sending millions of cold emails a month for our customers