POSTMARK TRAINING: SEND EMAILS THAT ACTUALLY ARRIVE
Hack’celeration offers a Postmark training to learn how to send transactional emails that land in the inbox (not spam). You’ll configure your account, authenticate your domains with SPF, DKIM and DMARC, create reusable templates, and connect Postmark to your tools via API and webhooks.
We’ll see together how to manage domain authentication, create and customize email templates, integrate Postmark with Make, n8n or your app, use webhooks to track events in real time (opens, clicks, bounces), and monitor deliverability to optimize your sends.
Whether you’re starting with transactional email sending or migrating from SendGrid or Mailgun, this training is for you. Developers, no-coders, product managers, ops: if you need to send emails from an app or workflow, you’re in the right place.
The approach is 100% practical. We don’t do theory. You configure, you test, you send. At the end, you’re completely autonomous with Postmark.
WHY TAKE A POSTMARK TRAINING?
Because Postmark can transform your emails “that leave but never arrive” into a reliable infrastructure that delivers at 99%+. And that changes everything for an app, a SaaS, or an e-commerce site.
The problem: many people configure Postmark quickly, send emails, and realize 2 weeks later that half land in spam. Or worse: they have no visibility on what’s really happening (how many emails arrive, which ones bounce, why).
Here’s what you’ll master:
- Configure Postmark like a pro: You’ll create your account, add your domains, configure authentication (SPF, DKIM, DMARC), and implement best practices to maximize deliverability from the start.
- Create templates that convert: You’ll design reusable email templates, personalize content with dynamic variables, and manage multiple versions (confirmation, reset password, notifications, etc.).
- Automate your sends: You’ll connect Postmark to your tools (Make, n8n, your app) to send emails automatically based on precise triggers (new user, order placed, action completed).
- Track and analyze everything: You’ll use webhooks to receive events in real time (opens, clicks, bounces, spam reports), monitor deliverability, and react when a problem arises.
- Handle complex cases: You’ll manage bounces (hard vs soft), understand suppressions, set up multiple sender signatures, and optimize your sends at scale.
Whether you’re starting from scratch or have already tinkered with Postmark, we’ll give you the right reflexes to send cleanly, monitor effectively, and never again wonder “why aren’t my emails arriving?”.
WHAT YOU’LL LEARN IN OUR POSTMARK TRAINING
MODULE 1: POSTMARK BASICS
We start at the beginning: create your Postmark account, understand the interface, and configure the fundamentals. You’ll create your first server (the equivalent of a “project” in Postmark), understand the difference between transactional and broadcast servers, and set up your account to avoid classic mistakes. We’ll see how to navigate the dashboard, where to find your API keys and SMTP tokens, and how Postmark bills (it’s important to understand this before accidentally sending 50k emails). You’ll also understand key concepts: sender signatures, message streams, and how Postmark organizes your sends to maximize deliverability. At the end of this module, you have a functional Postmark account and you know where to look when you want to do something.
MODULE 2: AUTHENTICATE YOUR DOMAINS
This is THE critical part. If you mess this up, your emails go to spam. Period. You’ll add a domain in Postmark, retrieve the necessary DNS records (SPF, DKIM, DMARC), configure them at your registrar (OVH, Cloudflare, etc.), and verify everything is in place. We’ll see why authentication is crucial for deliverability, how Postmark verifies your configuration, and how to correct common errors (badly formatted DNS record, slow propagation, conflict with other services). You’ll also understand what SPF, DKIM and DMARC actually do: SPF says “this server can send for my domain”, DKIM cryptographically signs your emails, DMARC tells ISPs what to do if it doesn’t pass. At the end, your domains are authenticated, verified, and ready to send. You know how to read DMARC reports to detect if someone is trying to impersonate your domain.
MODULE 3: CREATE AND MANAGE YOUR TEMPLATES
Now that we can send, we’ll create emails that look good. You’ll create templates in Postmark (with the visual editor or in HTML/CSS), personalize content with dynamic variables, and manage multiple versions for different use cases. We’ll see how to structure a good template (header, body, footer, CTA), use Postmark variables to personalize (first name, last name, amount, date, unique link), and test your templates before sending them to production. You’ll also learn to manage layouts (to reuse the same structure on all your emails), create responsive templates that display well on mobile, and version your templates to avoid breaking what works. At the end of this module, you have a library of ready-to-use templates. You can create a new email in 10 minutes, not 3 hours.
MODULE 4: SEND VIA API AND SMTP
Let’s get practical: send emails from your app, your no-code tool, or your workflows. You’ll send your first email via the Postmark API (with a simple HTTP POST call), use API keys to authenticate your requests, and handle responses (success, errors, return codes). We’ll see how to send a simple email, an email with template, an email with attachment, and how to customize headers (reply-to, CC, BCC, custom headers). You’ll also learn to use SMTP if you prefer (for tools that only handle that), configure your SMTP credentials, and understand when to use API vs SMTP (spoiler: API is better 90% of the time). At the end, you know how to send from any source: your Node/Python/PHP app, Make, n8n, Zapier, or even Excel if you really must.
MODULE 5: WEBHOOKS AND REAL-TIME EVENTS
Webhooks are what transform Postmark from a simple sending tool into an intelligent system that notifies you of everything. You’ll configure webhooks to receive events in real time: email delivered, opened, clicked, bounced, marked as spam, or blocked. We’ll see how to create an endpoint to receive webhooks (with Make, n8n, or your backend), parse the received data, and trigger automatic actions (notify Slack when an email bounces, follow up with a user who didn’t open, update your CRM like HubSpot). You’ll also learn to handle different types of bounces (hard bounce = invalid address, soft bounce = temporarily full mailbox), understand suppressions (unsubscribe, spam complaints), and react intelligently. At the end of this module, you have a system that tracks everything. You know exactly what’s happening with each email, and you can automate follow-up actions.
MODULE 6: OPTIMIZE DELIVERABILITY AND ADVANCED CASES
We finish with advanced techniques to maintain top-tier deliverability and handle large volumes. You’ll monitor your deliverability stats (open rate, click rate, bounces, spam reports), identify warning signals (bounce spike, open rate drop), and correct before it impacts your reputation. We’ll see how to manage multiple sender signatures (to send from different domains or addresses), use message streams to separate transactional and marketing, and optimize your sends at scale. You’ll also learn to interpret Postmark reports (bounce logs, spam complaints, deliverability stats), manage suppression lists, and implement progressive warming if you send large volumes. At the end, you have a solid, monitored, and optimized email infrastructure. You know how to detect and resolve any deliverability problem.
WHY TRAIN IN POSTMARK WITH HACK’CELERATION?
AN AGENCY THAT USES POSTMARK FOR CLIENTS EVERY DAY
At Hack’celeration, we’re not just trainers. We’re first and foremost an agency that uses Postmark (and many other tools) for clients every day. Our expertise isn’t limited to Postmark. We master the entire stack: Airtable, Notion, HubSpot, Make, n8n, Zapier, dozens of tools we connect together to automate and scale our clients’ operations. We work with SMEs, growing startups, and large companies that need to automate their transactional email sends at scale. We’ve configured Postmark email infrastructures for e-commerce sites that send 500k+ emails per month with 99%+ deliverability, SaaS that migrated from SendGrid without losing a single email, and platforms that need advanced webhooks to track every event in real time. We know exactly where things get stuck in real life: DNS authentication that doesn’t pass, bounces that explode after a mass send, templates that display poorly on Outlook, webhooks that saturate when volume increases. Our training doesn’t skim over features. We give you a field-tested method, ready-to-use templates, and advice from real projects. You learn with trainers who have configured dozens of Postmark accounts and know exactly how to avoid deliverability pitfalls.
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FAQ – EVERYTHING YOU NEED TO KNOW ABOUT OUR POSTMARK TRAINING
Is it really free?
Yes. You're among the first to benefit from it as a preview. No hidden fees, no commitment. Just complete access to all 6 modules, replays, and support from our experts.
How long does it take?
4 weeks. You progress at your own pace with 2-hour self-paced training blocks (videos, exercises, templates). Plus 1 weekly group session of 1 hour to ask questions and work on practical cases with our trainers.
Is it live or recorded?
Both. Training content is recorded so you can progress whenever you want. Weekly Q&A sessions are live, but also recorded if you miss a session.
How do I register?
Registration form on this page. Once registered, you'll receive a confirmation email with access to the platform, the session calendar, and the first content to get started.
Do I need to be technical to follow the Postmark training?
Not really. If you know how to copy-paste DNS records and make a simple API call, you're good. We explain everything step by step. However, if you're a developer, you'll go faster on the API and webhooks modules.
Postmark vs SendGrid: when to choose Postmark?
Postmark if you mainly send transactional emails (confirmations, notifications, password resets) and want top-tier deliverability. SendGrid if you also do mass marketing with advanced segmentation. Postmark is simpler, more reliable, but less feature-rich for marketing. We detail the differences in module 1.
Can I integrate Postmark with Make or n8n?
Totally. We have dedicated modules for that. You'll learn to send emails from Make via the Postmark API, receive webhooks in your scenarios, and automate the entire lifecycle of your emails (sending, tracking, post-open actions). Same for n8n, Zapier, or your personal backend.
How to handle deliverability issues with Postmark?
Deliverability is 80% configuration (SPF, DKIM, DMARC done right) and 20% monitoring. In the training, we show you how to configure authentication correctly from the start, interpret deliverability stats, manage bounces and suppressions, and react when your rates drop. We also give you best sending practices to maintain a clean IP/domain reputation.
Is Postmark suitable for large volumes?
Yes. Postmark easily handles millions of emails per month. We have clients who send 500k+ emails/month without issue. However, if you're starting from scratch with large volumes, you need to do progressive warming (we increase volume gradually to avoid triggering anti-spam filters). We cover this in module 6.
Can I migrate from SendGrid or Mailgun to Postmark?
Completely. It's actually quite simple: you configure your domains in Postmark, migrate your templates, change your API keys in your code, and you're done. We have a step-by-step migration guide. The only critical point: test thoroughly before switching to production to avoid losing emails during the transition.