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How do I configure my 138 enterprise email for optimal inbox placement in Gmail, Outlook, and QQ Mail?
Start by verifying your domain’s DNS records: publish SPF, DKIM, and DMARC with strict alignment (p=quarantine or p=reject). For Gmail and Outlook, ensure your sending IP has warm-up history and consistent volume; for QQWhat are the essential steps to migrate existing business email to 138 secure email without delivery disruption?
A zero-downtime migration requires three synchronized phases: (1) Pre-migration validation—verify MX, TLS, and authentication settings; (2) Staged cutover—route new mail through 138 while retaining legacy routing for falHow 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 in
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