← AutoSMTP Operational Notes & Engineering Memos Old Volume Break-Even 250K/mo Pre-2024 shared pricing 2026 Volume Break-Even 65K/mo Under strict Gmail/Yahoo rules Shared Pool Risk Premium +34% Bounce & deferral cost lift Dedicated IP Amortization 90 Days To peak algorithmic trust 📅 Published: June 2026 | ⏱️ Reading Time: 17 min deep technical guide | […]
← AutoSMTP Operational Notes & Engineering Memos iCloud Global Market Share 14.8% Predominantly mobile B2C Published Requirements Zero Formal No Postmaster portal MPP Privacy Proxy Share 92.4% Cached pre-fetched pixels Primary Filter Mechanism Trend Micro / AI Private in-band heuristics 📅 Published: June 2026 | ⏱️ Reading Time: 15 min deep technical guide | 👤 […]
← AutoSMTP Operational Notes & Engineering Memos Global p=reject Rate 2.5% Strict policy enforcement Published p=none Rate 51.8% The compliance mirage SPF Lookup Limit Failures 38.2% >10 DNS queries on include Audit-to-Reject Timeline 6–8 Weeks Zero mail loss protocol 📅 Published: May 2026 | ⏱️ Reading Time: 16 min deep technical guide | 👤 Author: […]