One-Time Passwords (OTPs) are widely used to secure digital accounts, online transactions, and sensitive processes. These single-use codes ensure that only authorized individuals can access private information. But can OTPs be reused? And if so, what are the risks? This article examines the security implications of OTP reuse, highlighting why its single-use nature is crucial, […]
OTP security best practices for developers: map each OTP attack to its defense, harden delivery and server-side validation, ship verification that holds.
OTP Security Best Practices: A Developer’s Guide to Secure Transactions (2026) Read More »
You’ve wired up the Arkesel OTP API endpoint. You fire off your first request. Instead of a delivered OTP, you get this: { "code": "1004", "message": "SMS gateway not active or credential not found" } Now what? This OTP API integration troubleshooting guide maps every Arkesel OTP API error code to its root cause, shows
OTP API Errors: 10 Common Issues and How to Fix Them (2026) Read More »
How to avoid SMS spam filters across Africa: an 8-point checklist, why messages get filtered, and the consent and sending rules every sender needs.
How to Avoid SMS Spam Filters: A Deliverability & Compliance Guide for Africa Read More »
Bulk SMS is one of the fastest ways to reach customers in Nigeria, and one of the easiest places to pick up a compliance rule nobody can point to a source for. In this guide to bulk SMS regulations in Nigeria, every rule that carries a link is quoted from the Nigerian Communications Commission’s own
Bulk SMS in Nigeria: Legal and Regulatory Aspects Read More »
Marketers keep asking the same question: with social media, influencers, and paid ads everywhere, is email marketing still effective? The short answer is yes. Email remains one of the highest-return channels a business owns — and unlike rented audiences on social platforms, your email list belongs to you. This guide answers the email marketing effectiveness
The Effectiveness of Email Marketing: ROI, Impact & How to Measure It Read More »
Email list management best practices come down to one rule: grow your list with permission, segment it by what subscribers care about, and clean it on a regular cadence so every send reaches a real, engaged person. Do that, and your campaigns land in the inbox and convert. Skip it, and even great content dies
Best Practices for Managing Email Marketing List Read More »
Is bulk SMS legal in Ghana? Yes — within two rule-sets. A plain-language guide to Act 843 consent, DPC registration, and the NCA’s opt-in/opt-out rules.
Is Bulk SMS Legal in Ghana? Requirements & NCA Compliance Read More »
As Easter approaches, businesses across Ghana are gearing up to connect with their audience and drive sales during this festive season. At Arkesel, we understand the importance of engaging with customers in meaningful ways and delivering targeted promotions that resonate with their interests. Let’s delve deep into the power of SMS marketing and its effectiveness
As Ghana prepares to commemorate its Independence Day on March 6th, businesses and organizations across the nation are gearing up to celebrate this significant event. Amidst the festivities and patriotic passion, there lies a golden opportunity for businesses to connect with their audience in a profound and meaningful way through SMS marketing. In this comprehensive
