Technical Review: MailCampaign Deliverability & MTA Architecture Team
Google Postmaster Tools (GPT) provides direct visibility into how Gmail views your sending domain and IP addresses. Maintaining a user-reported spam rate below 0.10% is mandatory to avoid bulk junk filtering.
1. Key Telemetry Metrics in Google Postmaster Tools
📊 Google Postmaster Quality Thresholds
User Reported Spam Rate: Must remain strictly < 0.10% (0.30% causes catastrophic spam folder routing).
IP & Domain Reputation: High > Medium > Low > Bad. A Bad rating drops 90%+ of messages to Spam.
Authentication Pass Rates: SPF, DKIM, and DMARC alignment must maintain 100.0% compliance.
TLS Delivery Encryption: 100% of outbound connections must use TLS 1.2 or TLS 1.3.
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MailCampaign Deliverability & MTA Architecture Team
Our email systems engineering team designs high-throughput SMTP relays, performs DNS authentication audits (SPF/DKIM/DMARC/BIMI), and monitors global DNSBL delisting workflows.
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