Blog

Insights on email delivery, developer tools, and marketing automation.

How to build a drip campaign that actually works
Sendkit TeamSendkit Team·

How to build a drip campaign that actually works

Design email drip campaigns with the right timing, content strategy, and automation logic to nurture leads into customers.

Building an AI-powered email assistant with Sendkit
Vanessa LozzardoVanessa Lozzardo·

Building an AI-powered email assistant with Sendkit

Combine an LLM with the Sendkit API to build an assistant that drafts, sends, and tracks email on behalf of your users.

How to let AI agents send email
Paulo CastellanoPaulo Castellano·

How to let AI agents send email

Give your AI agents the ability to compose and send email programmatically using the Sendkit API.

How to avoid the spam folder — a practical checklist
Sendkit TeamSendkit Team·

How to avoid the spam folder — a practical checklist

15 things you can do right now to stop your emails from landing in spam. Authentication, content, list hygiene, and sending habits.

Transactional vs marketing email: what's the difference?
Vanessa LozzardoVanessa Lozzardo·

Transactional vs marketing email: what's the difference?

One is triggered by user actions, the other by your calendar. Here's why the distinction matters for deliverability, compliance, and infrastructure.

How to warm up a new sending domain
Paulo CastellanoPaulo Castellano·

How to warm up a new sending domain

A step-by-step guide to IP and domain warming — the schedule, the pitfalls, and how to build sender reputation from scratch.

Email authentication explained: why Gmail rejects your email
Sendkit TeamSendkit Team·

Email authentication explained: why Gmail rejects your email

Gmail, Yahoo, and Outlook now reject unauthenticated email. Here's what SPF, DKIM, and DMARC actually do and how to set them up.

How to handle email bounces programmatically
Paulo CastellanoPaulo Castellano·

How to handle email bounces programmatically

Build proper bounce handling with webhooks, suppression lists, and retry logic to protect your sender reputation.

Best email API for startups in 2026
Vanessa LozzardoVanessa Lozzardo·

Best email API for startups in 2026

A practical guide to choosing an email API when you're building fast and can't afford to get it wrong.

Sendkit vs Mailchimp: why developers are switching
Paulo CastellanoPaulo Castellano·

Sendkit vs Mailchimp: why developers are switching

Mailchimp is built for marketers. Sendkit is built for everyone — developers, marketers, and teams that need both.

Sendkit vs Mailgun: a practical comparison
Sendkit TeamSendkit Team·

Sendkit vs Mailgun: a practical comparison

Mailgun has been around forever. Sendkit is the modern alternative. Here's how they compare on DX, pricing, and features.

Sendkit vs Amazon SES: managed platform vs DIY infrastructure
Vanessa LozzardoVanessa Lozzardo·

Sendkit vs Amazon SES: managed platform vs DIY infrastructure

Amazon SES is cheap per email but expensive in engineering time. Here's when each makes sense.