“550: Please Turn On SMTP Authentication in Your Mail Client” – What It Means and How to Fix It
Have you ever hit “Send” on an email and immediately been smacked with the error:“550: Please turn on SMTP authentication in your mail client”? Yeah, it’s annoying. Especially when you’re not sure what it means, and your email just refuses to go through. Let’s decode it, understand why it happens, and fix it—without jargon, stress, […]