Insights & practical guides
Use cases, marketing strategy, and technical integration — focused on deliverability and practical integration advice.
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How Hong Kong SMS billing works — characters, Unicode and segmentation
Why 70 Chinese characters bills as two messages. GSM-7 versus UCS-2, the 160/153 and 70/67 segmentation rules, and how to reconcile your real billed count with the usage report API.
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Hong Kong promotional messaging compliance checklist — what the UEMO requires of senders
Read before sending promotional SMS or MMS to Hong Kong numbers. Sender information, unsubscribe facilities, the 10-working-day rule, the three Do-not-call Registers — the ordinance's duties and a checklist you can actually run.
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SMS not getting delivered? The surprising reasons behind it
Why does SMS fail to arrive even when the API returned success? The real causes are more numerous than you would expect — from carrier filtering and SIM status to grey-route forwarding.
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How to keep your email and newsletters out of the spam folder — a complete guide for business senders
Marketing email landing in spam? How mailbox providers decide in three layers — authentication, sender reputation, content — plus how to diagnose where you stand, how to recover once you are flagged, and the unsubscribe rules in the US, UK, Hong Kong and Taiwan.
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The channel you thought was obsolete is the one that works
Clients keep asking whether email still works. When they ask, they are usually going on their own reading habits rather than genuinely dismissing what email does. So — for marketing purposes, does email actually deliver?
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Phishing SMS scams
How phishing SMS works, how Hong Kong's OFCA sender-registration scheme (# Sender ID) helps counter it, and how businesses should protect their brand and their customers.
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What SIM card real-name registration means for SMS providers
How Hong Kong's SIM card real-name registration scheme affects business SMS — legitimate routes versus SIM-based sending, and why it improves the industry.
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Inside the SMS platform — dashboard and reporting
A tour of the UFOSend dashboard — real-time DLR reporting, send volume, delivery rate, carrier-grade error breakdowns and audit log export.
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SMS as the entry point to your funnel
Putting SMS into your sales funnel — welcome sequences, abandoned cart reminders, campaign conversion and membership renewals, and how it divides work with EDM and MMS.
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Open and click tracking
Adding trackable short links to SMS and MMS to measure real clicks and conversions — while avoiding false positives from anti-phishing systems.
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What Is MMS? Picture SMS Explained — Hong Kong Campaigns & Test Send
What is MMS: picture-and-text to a mobile number, billed per message (~230KB), not per SMS segment. How it differs from SMS and why images fail. Hong Kong promotions on the MMS page; Taiwan on mms-tw.
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Do you still receive SMS and MMS when you are overseas?
How SMS and MMS reach Hong Kong users roaming abroad — delivery, delay, and how charging works.
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Want to be more competitive? Put a Sender ID on your business messages
Sending SMS or MMS has become the most effective and direct way for major businesses and brands to communicate with customers.
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What is an SMS code? How one-time passcodes (OTP) work
An SMS code is a one-time passcode sent by text to confirm a login or a payment. It is only valid for a short time. If it never arrives, check the time limit and the route before sending another. Hong Kong and Taiwan use the same idea; wiring it to +886 is a separate walkthrough.
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What Is LBS? Location-Based SMS, Hong Kong Rules, and When Not to Blast a List
Location-based SMS fires by geography, not by blasting a city-wide list. How it works in Hong Kong, what UEMO requires, and when business SMS or MMS is the better channel.
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