Sending SMS through Twilio does not automatically mean your messages arrive. Carrier filtering, unregistered campaigns, shared number reputation damage, and content policy violations all result in silent message loss that is invisible in your application logs unless you know where to look. A Twilio deliverability audit examines every layer of your messaging configuration to find and fix what is causing your messages to be filtered before they reach your customers.
What's Included
Delivery rate analysis by carrier, destination, and time of day, A2P 10DLC campaign status review, messaging service phone number pool health assessment, message content scan against known carrier filter patterns, opt-out handling compliance review, and a ranked remediation plan with estimated delivery rate improvement for each fix are all delivered. We also configure a monitoring setup so ongoing delivery problems surface immediately rather than accumulating silently over weeks.
How It Works
We request access to your Twilio account, pull delivery status data for your last 30–90 days of sends, and build a destination-by-carrier delivery rate breakdown. This immediately reveals which carrier networks are filtering your messages and at what rate. We then trace the filtering back to its cause, content policy violations, registration gaps, sending pattern anomalies, or number pool reputation damage, and produce a fix sequence prioritized by expected delivery rate improvement.
Who This Is For
Businesses experiencing unexplained drops in SMS engagement rates, teams that recently noticed higher-than-normal error codes in their Twilio delivery logs, companies that migrated from another SMS platform and saw deliverability decline post-migration, and any organization sending more than 10,000 messages per month where delivery rate directly affects revenue are the right candidates for this service.
Why Choose Telphi
SMS deliverability problems are frequently misdiagnosed as content issues when the real cause is a registration gap or a number pool with damaged reputation from previous senders. We have audited deliverability for senders across healthcare, financial services, e-commerce, and SaaS and know how to distinguish between carrier filtering patterns that require registration fixes versus content adjustments versus architectural changes to the sender pool.
Conclusion
If your SMS delivery rate is below 95%, you are losing revenue every day the root cause remains unidentified. Book a free consultation with our team and we will give you a preliminary assessment of where your deliverability is breaking down within the first call.
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