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Opptima Blog — Email Marketing, SMS and WhatsApp Business

Recent Posts

This space is dedicated to sharing news, trends and key insights from the world of transactional email marketing

Are You Using the Cold Emailing Strategy Correctly? Learn How to Optimize Your Awareness Campaign with Opptima
Deliverability

Are You Using the Cold Emailing Strategy Correctly? Learn How to Optimize Your Awareness Campaign with Opptima

Introduction Cold emailing is one of the most controversial and debated strategies in digital marketing. Many marketers see it as an effective technique for reaching new customers, while others consider it risky and unethical. But when done right, cold emailing can be a powerful tool for generating business opportunities. If you have access to a […]

by Camila de Opptima
The 7 Most Serious Mistakes in Email Campaigns for Fine Management and Legal Notifications
Legal Notifications

The 7 Most Serious Mistakes in Email Campaigns for Fine Management and Legal Notifications

Introduction Are you sure your emails about fines, legal notifications, or collection processes are arriving correctly? In this kind of communication there’s no margin for error: if the message isn’t delivered, you could be facing legal problems, missed deadlines, or lost cases due to improper notification. The thing is, many companies still use traditional methods […]

by Camila de Opptima
Dedicated IP vs Shared IP: What You Need to Know If You Send Critical Notifications
Technology

Dedicated IP vs Shared IP: What You Need to Know If You Send Critical Notifications

Introduction “Your email was flagged as spam“… a phrase that can ruin any critical notification campaign. If your company sends collection emails, legal, tax, or sensitive-process notifications, you need more than a good message. You need it to arrive. And this is where many organizations fail: they use the wrong infrastructure. Few people outside the […]

by Camila de Opptima
Why Is Sending a Single Email in Email Marketing a Bad Strategy?
Marketing

Why Is Sending a Single Email in Email Marketing a Bad Strategy?

Introduction In the world of email marketing, many companies make the mistake of thinking that a single email can be enough to capture their customers’ attention and generate sales. However, this strategy can be counterproductive. In this blog, we’ll explore the disadvantages of sending a single email and how you can improve your email marketing […]

by Camila de Opptima
Email + SMS: The Perfect Formula to Reduce Delinquency in Large Companies
Marketing

Email + SMS: The Perfect Formula to Reduce Delinquency in Large Companies

Introduction Still relying only on email or SMS to recover receivables? In large companies, with hundreds or thousands of accounts receivable, using a single channel is no longer enough. Customer behavior has changed. Today they check their email in the morning, but respond via WhatsApp or SMS in the afternoon. So why insist on a […]

by Camila de Opptima
The Risk of Using Amazon SES in Your Company and Why You Need an Alternative
Deliverability

The Risk of Using Amazon SES in Your Company and Why You Need an Alternative

Introduction In the financial sector, the real problem isn’t simply sending messages; the true challenge is delivering value and results that push the user toward a concrete payment action. Yet many financial services and collections companies face a frustrating technical obstacle: their collection emails get blocked or flagged as spam by generic providers like Amazon […]

by Camila de Opptima
SMTP or email marketing? Which one should you use for sensitive notifications, and why?
Marketing

SMTP or email marketing? Which one should you use for sensitive notifications, and why?

Introduction Are your collection emails or legal notifications reaching their destination? It’s a question many companies should ask themselves. In a digital world where traceability, legality, and accuracy matter more than ever, using the wrong tool to send sensitive emails can cost you dearly: from lawsuits for failure to notify properly to regulatory penalties. Not […]

by Camila de Opptima
Is Email Marketing a Waste of Time in 2026? The Truth for the Financial Sector
Marketing

Is Email Marketing a Waste of Time in 2026? The Truth for the Financial Sector

Introduction: The myth of email’s death Is email marketing in 2026 still a smart investment, or just digital noise? In today’s fast-moving ecosystem, where artificial intelligence and social media saturate user attention, many business owners —especially in the collections and finance sectors— wonder whether it’s still worth sending emails. The short answer is: yes, but […]

by Camila de Opptima