Easily connect and send your website emails with our SMTP relay and Email API to ensure maximum deliverability, reliability, and scalability.
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.
Learn how to stop contact form spam in WordPress using AI without slowing down your forms with CAPTCHA.
This guide walks you through setting up server-side spam filtering with ActiveLayer, adding a honeypot layer, and protecting your forms from bots.
Block spam, protect your leads, and ensure real submissions reach your inbox with a simple, frictionless setup.
Learn how to send emails from Firebase Functions using Nodemailer and SendLayer SMTP for reliable, production-ready delivery.
This step-by-step guide walks you through creating a Cloud Function, securing credentials with Firebase secrets, and sending HTML emails with attachments.