Easily connect and send your website emails with our SMTP relay and Email API to ensure maximum deliverability, reliability, and scalability.
Are you wondering why emails sent from your domain end up in spam?
Your emails go to spam for one of 3 reasons.
This guide explains why this happens and shares tips on how to check for and recover from emails being sent to recipients’ spam folders.
Want to add email functionality to your Node.js application?
Learn how to send emails with Nodemailer in Node.js using SMTP, with working examples for HTML emails and attachments.
This step-by-step guide covers everything from installing Nodemailer and configuring your SMTP transporter to troubleshooting authentication and connection errors.
Learn how to write order confirmation emails that customers actually read—and that reliably reach the inbox.
This guide covers what to include, real examples for different scenarios, and copy-paste templates you can use right away.
You’ll also learn how to send confirmations via API or SMTP and fix emails that never arrive after checkout.
Looking for a truly free SMTP server? This guide compares the best options with permanent free plans.
You’ll see verified sending limits, daily caps, and real-world tradeoffs across providers.
Choose the right SMTP service for your needs, avoid hidden limits, and plan for scale without breaking email delivery.