Sendersignal

SenderSignal is an email deliverability and sender reputation monitoring platform that helps businesses protect domain reputation, monitor sending IPs, and identify issues affecting inbox placement.

Built for SaaS companies, agencies, ESPs, eCommerce brands, and high-volume senders, SenderSignal combines real-time blacklist monitoring, reputation tracking, and email authentication insights in one platform.

Monitor domains and IPs across 150+ blacklist sources, reputation feeds, and authentication signals. Get instant alerts to detect deliverability issues early and protect marketing, transactional, and customer emails.

Key capabilities include domain and IP reputation scoring, SPF, DKIM, DMARC, MX, SMTP, and TLS monitoring, plus alerts via Slack, Teams, PagerDuty, email, SMS, and webhooks. API workflows support automation, integrations, and guided blacklist remediation.