Blog

Scheduling Notifications: Confirmations, Reminders, and Cancellations

Explore email workflows for meeting confirmations, reminders, and cancellations, including timing, template structure, and sender authentication considerations.

Sendbound Team6 min read

Booking Confirmation Emails: Templates, Timing, and Authentication

A discussion of booking confirmation and reminder emails, covering template structure, timing, and authentication without promising a specific inbox-placement rate.

How strides Uses Milestone Emails to Drive User Retention

strides sends personalized goal milestone emails that are timed to exactly when a user hits a streak or completes a habit. Open rates are 61%. Here's how they built it.

Sendbound Team5 min read

How kandidly Scaled Candidate Status Emails to 1M/Month

kandidly sends personalized application status updates to candidates at scale — rejections, interview invites, and offers all need to land in the inbox. Here's their setup.

How apparatuz Automated Equipment Rental Transactionals with Sendbound

apparatuz handles rentals across hundreds of equipment categories. Every reservation, pickup reminder, and return confirmation runs through Sendbound. Zero missed sends in 8 months.

Sendbound Team6 min read

How supportly Cut Ticket Notification Email Costs by 70%

supportly was paying $800/month on Mailchimp Transactional for ticket opened, replied, and resolved emails. After switching to Sendbound, their bill dropped to $39. Real numbers inside.

Sendbound Team5 min read

How zignature Delivers E-Signature Requests with 99.9% Reliability

For zignature, a missed signature request email costs a deal. They moved to Sendbound for its delivery guarantees, webhook receipts, and retry logic. Here's what that looks like in practice.

How guidez Onboards 5,000 New Users a Month with a Sendbound Sequence

guidez runs a 7-email onboarding sequence that activates users within the first 14 days. 68% open rate on day 1, 41% on day 7. Here's every email, every trigger, and every decision.

How BIMI Helps You Show Your Logo in Every Inbox

BIMI lets your brand logo appear next to your emails in Gmail, Apple Mail, and Yahoo. Here's how to set it up correctly without breaking DMARC.

Sendbound Team10 min read

Engineering

The New DMARC Requirements and What They Mean for You

Google and Yahoo now require DMARC for bulk senders. We break down exactly what changed, who is affected, and what you need to do before your next send.

Engineering

Engineering a Serverless Email Adapter for Next.js and Vercel

How we built a serverless-compatible email adapter that works seamlessly with Next.js API routes, Vercel Edge Functions, and Cloudflare Workers.

Sendbound Team12 min read

Six Steps to Improve Your Sender Reputation in 30 Days

Sender reputation is the single biggest factor in inbox placement. These six steps — from list hygiene to warm-up schedules — can lift your placement rate above 99%.

Sendbound Team9 min read

Product

Introducing Sendbound AI — Write Emails with Natural Language

Generate production-ready email HTML from a plain-English description. Sendbound AI understands deliverability best practices and renders correctly across all major clients.

Sendbound Team4 min read

Company

Launch Week 1: Everything We Shipped

Five products in five days: the Email API, React Email v2, the Webhook Explorer, the Deliverability Dashboard, and the MCP Server. Here's what we learned.

Sendbound Team14 min read

Email Deliverability in 2026: The Complete Developer Guide

Everything you need to know about email deliverability in 2026: SPF, DKIM, DMARC, BIMI, IP reputation, bounce handling, and the Gmail/Yahoo sender requirements that went live this year.

Sendbound Team10 min read

SPF, DKIM, and DMARC: A Developer's Setup Guide

Step-by-step instructions for configuring SPF, DKIM, and DMARC records for your sending domain — including common mistakes and how to verify each one is working correctly.

Engineering

Building Transactional Emails with React Email

A practical guide to building production transactional email templates with React Email — component structure, dynamic data, multipart rendering, and integration with Sendbound's API.

Sendbound Team11 min read

Why Your Emails Land in Spam (and the Exact Fix)

The six most common reasons emails land in the spam folder — and the specific, actionable fix for each one. From DNS configuration to list hygiene to content analysis.

Sendbound Team9 min read

IP Warm-up: Why It Matters and How to Do It Right

IP warm-up is the process of gradually building sender reputation on a new IP address. Get it wrong and you'll send yourself to spam from day one. This guide explains how it works and how to automate it.

Email Workflows for Website Publishing Platforms

Explore email workflows for website publishing products, including team invitations, publish notifications, weekly digests, and sending-reliability considerations.

Transactional vs. Marketing Email: The Developer's Guide to Getting It Right

Transactional and marketing emails have different rules, different infrastructure requirements, and different legal compliance obligations. Here's how to set up both correctly and why you should never mix them.