How can I verify if my 138 email setup is correctly recognized as a trusted sender globally?

Trust isn’t configured—it’s continuously earned. Confirm baseline trust by checking: (a) SPF/DKIM/DMARC alignment status via our free domain validator; (b) absence from major RBLs (e.g., Spamhaus, SORBS, and Tencent’s internal blacklist); (c) consistent TLS 1.2+ enforcement and valid certificate chain. Crucially, monitor *regional* signals: Gmail evaluates engagement metrics per sender domain; QQ Mail weighs local complaint rates and whitelist status. We surface these signals side-by-side in your deliverability dashboard—so you see not just ‘is it working?’, but ‘is it working *where it matters most*?’ Request your personalized trust readiness report.