Deliverability guides and articles

10 articles from eSMS Africa about deliverability. Newest first.

• Why OTPs Fail in Kenya and How to Design Verification That Arrives OTP not received on Safaricom? The usual causes are the wrong sender ID, promotional-looking text, resend loops and unmonitored delivery. Here is how to fix each one. Developers· 7 min read
• OTP Not Delivering to MTN, Airtel or Glo Users? A Debugging Checklist OTPs failing on one Nigerian network but not another? Work through route class, sender ID approval, content, DND, ported numbers and resend logic, with the delivery statuses that point to each cause. Developers· 7 min read
• Why OTPs fail in Tanzania and how to fix them Unregistered sender IDs, generic names, bad number formats, roaming tourists and resend spam explain most failed OTPs in Tanzania. Here is how to diagnose and fix each one. Developers· 7 min read
• MTN Zambia sender ID whitelisting: why your SMS shows a number Your SMS shows a number instead of your brand on MTN Zambia? Here is what the networks check when whitelisting sender IDs, why online advice conflicts, and how to fix it. Guide· 7 min read
• How to Avoid SMS Spam Filters and Improve Delivery Practical steps to keep your A2P SMS out of operator filters and reliably in front of customers across Africa. Deliverability· 1 min read
• Unsubscribes and the suppression list eSMS Mail honors opt-outs automatically: one-click unsubscribe plus a suppression list that blocks bounces, complaints and unsubscribes to keep your delivery high. Help· 1 min read
• Bounces and the Suppression List How eSMS Mail protects your reputation by suppressing bad addresses. Help· 1 min read
• Stop landing in spam: SPF, DKIM & DMARC made simple Most email hits spam because SPF, DKIM or DMARC are missing or wrong. Audit any domain and generate the exact records to fix it - right inside eSMS Mail. Help· 1 min read
• Verify Your Sending Domain: SPF, DKIM and DMARC Publish the right DNS records so your mail is authenticated and trusted. Help· 1 min read
• How do sender IDs affect deliverability? Registered, reputable sender IDs are far less likely to be filtered. A consistent, whitelisted sender ID is one of the highest-impact ways to improve delivery. Help· 1 min read