ENROLMENTS OPEN

£148

✓ All 3 modules: Learn → Audit → Fix

✓ The 6-step deliverability audit process

✓ Fillable templates & frameworks

✓ Up to 6 monthly live sessions with Beth

✓ Deliverability Certification on completion

Enrol today →

Stop losing sends to spam:

Know exactly why it happens and how to change it, so more of every campaign reaches a real person.
Answer the question nobody else can:

Understand how Gmail, Outlook and corporate filters assess you, and be the person in the room who can explain what's happening and WHY.
Report on real deliverability numbers:

Measure inbox placement and spam placement, so you're making decisions on what is happening not what you are assuming is happening.

Fix it yourself, on demand, for the rest of your career:

Run your own audit whenever you need one instead of waiting for budget, agency time or someone else's diagnosis.
Protect and grow the revenue email brings in:

Spot problems in week one rather than quarter three, and keep performance steady. This certification will also help you increase email performance and results.
Become more valuable:

Almost every marketing role involves email or if you want to be a email expert you need to understand and be able to manage email deliverability. This will open up more doors for you!

Over 300 professionals certified...

Truly amazing!

"Truly amazing. I walked away with so much valuable knowledge and a clear understanding of what to look out for and what actions to take. Everything you shared was incredibly valuable - I almost felt like I owed you money!"

MJ Balboa Online & Automation Team Lead, Kahoot

The best thing I've signed up for

"This was truly one of the best things I've signed up for since I've joined my company and switched careers to my current role!"

Katie Vitale Marketing Coordinator, Avtek Solutions

You are the email marketing lifesaver!

"I loved the breakdown and full understanding of email marketing. I didn't realise how much Mailchimp was hiding from me. They made out that my emails were great, getting opens, and all was good. But turns out a lot of those accounts were bot/spam accounts. I am now working on improving my email health with the things you have recommended. Thank you, you are the email marketing lifesaver!"

Alice Johnson Marketing Operations Coordinator at tilsatec

Amazing + very valuable

"I found all of the worksheets, templates, and to-dos extremely helpful in helping us with our deliverability audit."

Amber Roepcke Marketing Automation Specialist at Alpine Intel

What you will learn:

Across three modules; Learn, Audit and Fix, you'll find everything you need to understand deliverability, measure your own, and do something about what you find.

The certification is built to fit around a very busy and real work week, so nothing is a long sit-down block.

You'll work through:

Short video lessons, most under five minutes
Written guides you can read at your desk or come back to
Interactive workbooks that walk you through each step
Fillable templates, trackers and calculators to download and keep forever

Module 2 is where you will be running the full six-step audit on your own emails, using the same templates used on live client work.

Module one: What you need to know

⏱️ 25 lessons | Up to 2 hours of content

How inboxes decide what lands in the inbox and what doesn't. This is the foundation of email deliverability and ALL the knowledge you need.

Module one lessons:

What Email Deliverability is (and what it's not)
Can You Spot the Warning Signs
Email Deliverability Red Flags and Symptoms
Email Authentication Explained
How To Read a DMARC Report
Change and All the Factors
Should you use Double Opt In?
Sender Reputation & How It's Built
Email Feedback Loops Explained
Everything Else That Impacts
Shared vs Dedicated IP
How To Build a Domain Warm Up Plan
How Spam Filters Actually Think & Work
A Detailed Look at Spam Filters
ESPs and Deliverability Dashboards
What Your ESP Dashboard Is Telling You
Why B2B Deliverability is Harder Than Expected
What Are Email Blocklists?
Why B2C Deliverability Collapses Faster
One-Click Unsubscribe Explained
Consumer Psychology and the Inbox
BIMI Explained
Subdomain Strategy For Email
Microsoft SNDS Explained

By the end you'll be able to:

Explain deliverability to anyone, including your boss or your IT team
Spot the warning signs before they cost you results
Read your authentication setup and know what correct looks like
Understand what your ESP dashboard is actually telling you, and what it's hiding
Know why B2B and B2C fail in completely different ways

Module two: Deliverability Audit Process

⏱️ 25 lessons | Around 2 hours to learn and 1 to 2 months to run your own audit

The core of the certification. You run the same six-step audit used on live client accounts, on your own account, with workbooks and calculators guiding each step.

Two ways to do this:

Just learning it: around 2 hours to work through all 25 lessons and understand the process.
Actually doing it: 1 to 2 months, at roughly 15 to 30 minutes a week. That's because Step 5 needs placement testing over a sustained period.

No rush either way. You've got six months' access and extensions whenever you need it.

Module two lessons:

Step 1: Situational analysis

Step 1: Situational Analysis
Step 1: Situational Analysis Workbook

Step 2: Technical check

Step 2: Technical Check
Step 2: How to Check Your Email Authentication with MXToolbox
Step 2: How to Analyse Your Email Headers

Step 3: Reputation and infrastructure

Step 3: Reputation & Infrastructure

Step 4: Data and sending hygiene

Step 4: Data & Sending Hygiene
Step 4: Data & Sending Hygiene Guide
Step 4: How to Audit Your Bounces
Step 4: How to Audit Your Spam Complaints
Step 4: How to Audit Your Data Acquisition
Step 4: Data Acquisition & Spot Red Flags
Step 4: Consequential vs Intentional
Step 4: Validation & Verification
Step 4: Spam Traps
Step 4: Data & Sending Hygiene Audit
Step 4: Finding out about Corporate Spam Filters

Step 5: Inbox placement testing

Step 5: Inbox Placement
Step 5: Inbox Placement Testing: Cadence Calculator + Tracker
Step 5: Inbox Placement Results Interpreter
BONUS: Engagement Workbook and Calculator

Step 6: Interpretation and root cause

Step 6: How to Interpret the Results
Step 6: How to bring this all together
Step 6: Root Cause Weave

By the end you'll be able to:

Test your real inbox vs spam placement whenever you want
Know your spam rate per provider, not one blended number
Audit your bounces, complaints and data acquisition properly
Spot spam traps and the red flags in how your data was collected
Identify the root cause instead of guessing at symptoms
Produce a prioritised action plan you can put in front of someone

Module three: Redemption & Optimisation

⏱️ 16 lessons | 60-75 minutes of content + your own time to build your strategy

You've got your results. Now what!? This is where findings turn into a plan, and where you learn to protect good deliverability rather than assume it holds.

Module three lessons:

Lessons:

Where to start

What You Do Next?
It's a Strategy Problem
Transforming Your Approach
Two Of The Most Powerful Things To Fix Deliverability

Fixing what you found

Email Warm Up Tools
How to Clean Your Email List Safely
High Engagers Strategy
Redemption Optimisation Strategies
Building Your Redemption Strategy
Send Frequency and Deliverability

Measuring and protecting it

KPIs to Measure During Redemption
Your Risk Assessment and Exclusion Strategy
Deliverability Monitoring Routine

Taking it to the business

How to Convince Stakeholders
Executive Brief: Email Deliverability Risk

Special cases

Cold Email Deliverability

By the end you'll be able to:

Turn audit findings into a prioritised recovery plan
Clean and re-engage a list without doing more damage
Know which KPIs tell you whether recovery is working
Set up a monitoring routine that catches problems early
Make the case to stakeholders, with an executive brief ready to use

Finishing the certification

3 lessons:

The End of The Certification
How to Get Your Certificate

Plus how to keep using what you've built once the certification ends.

There is NO exam or test to get your certification, but you must watch all the video lessons.

Live sessions

Monthly - join one a month

One live session a month, with Beth, outside of the training itself. It's there for when you've hit something the videos can't answer, or you have questions or challenges.

What people bring:

Audit results they want a second opinion on
Placement data that doesn't make sense
A drop they can't explain
A re-engagement plan they want sense-checked before pressing send
Authentication that looks right but isn't behaving or shows errors
A stakeholder conversation they're dreading

How it works:

Come with a question or come to listen. Both are fine. Plenty of people join, say nothing, and take more away than the person asking, because someone else's problem is usually one you'll meet eventually.

It's a conversation, together. Share what you're finding, hear what others are dealing with, and get help applying this to your account rather than in theory.

Join one a month for as long as you've got access. Six months, six sessions.

BONUS COURSE: Re-engagement Email & Disengaged Data

Included free when you enrol.

Every business has a disengaged pot.

And sooner or later, someone says “we need to re-engage that list.”

It feels like opportunity. Money sitting in the database.

But email the wrong people, at the wrong time, and you damage deliverability for everyone. Including your best customers.

This bonus course shows you how to risk-assess your disengaged data before you send a single email.

Why it’s included
Re-engagement is one of the fastest ways to undo the work you do in this certification. It’s also one of the most common questions I get in live sessions. So it’s yours, free.

What’s inside

9 written lessons across 3 chapters
The risk assessment framework I built with a B2C brand
A Re-engagement Risk Assessment template that works out risk for you
A worked example and risk map, so you can see what good looks like
B2B and B2C examples throughout

What you’ll learn

What disengaged means for your business (there’s no universal rule)
Why you should never re-engage before peak
How opt-in type, conversion to trust and sign-up date predict risk
Which customer signals outside email matter
What to do with high, medium and low risk segments
How to take the decision to stakeholders in their language

By the end, you’ll be able to

Split your disengaged pot into small segments with a clear risk level
Know who to include, who to exclude and who needs a stakeholder call
Re-engage the right people without hurting inbox placement
Answer “should we email everyone?” with data, not opinion

Understand email deliverability properly - and explain it to anyone in simple terms
Check your own inbox and spam placement anytime you want or need
Run a full audit on your account using a proven 6-step process

Diagnose the reasons why you're landing in spam
Fix it, and build a long-term strategy to keep it fixed
Prove it, with a certification that shows you can evaluate deliverability

Individual booking

£148

If you're enrolling yourself onto the programme click enrol now.

✓ All 3 modules: Learn → Audit → Fix

✓ The 6-step deliverability audit process

✓ Fillable templates & frameworks

✓ Up to 6 monthly live sessions with Beth

✓ Deliverability Certification on completion

Enrol and start →

4+ group booking

Discounted rate

Get your whole team enrolled and enquire about a discounted group booking.

✓ All 3 modules: Learn → Audit → Fix

✓ The 6-step deliverability audit process

✓ Fillable templates & frameworks

✓ Up to 6 monthly live sessions with Beth

✓ Deliverability Certification on completion

Group booking →

Created by Beth O'Malley

This programme has been developed and taught by Beth O'Malley, a deliverability & email specialist and creator of astral (an email, CRM & HubSpot consultancy).

Beth has been doing email for over 12 years; she's been in-house, agency-side, and now works as a consultant and trainer, auditing, transforming and teaching everything about email.

Deliverability is one of Beth's specialisms, and she's made it her mission to educate as many marketers around the globe on email deliverability. The frameworks and templates in this programme aren't just teachable theories - they're the exact ones she uses on live audits every day.

Beth's approach means you won't get any vague or recycled advice; a complex topic will be broken down in a simple way, and you'll enjoy doing it. Everything we do at astral, blends practical teaching and in--depth theory that helps you understand what's happening and exactly what to do about it.

The best thing I've signed up for

"This was truly one of the best things I've signed up for since I've joined my company and switched careers to my current role!"

Katie Vitale Marketing Coordinator, Avtek Solutions

Highly recommend it to all

"I think every part was valuable. I was impressed with the entire presentation. Well done! I learned a great deal and would highly recommend it to all B2B email marketers."

Amber Edson Marketing Automation Specialist at Alpine Intel

Your expertise is unmatched

“Your expertise is unmatched, and your frameworks are logical to follow. There is SO MUCH info, that I reached a point of overwhelm, but was relieved to know these resources were coming.”

Lauren Bean Marketing Ops & Demand Gen Director, Centrical

So clear and simple

"Your way of explaining it all was so clear and simple, I feel like I not only finally understand it but can also explain it! It's no longer a mystery to me!"

Maria Malaniia Email Freelancer

Practical and actionable

“Practical, actionable and Beth was great to learn from”

Emma-lee Levett GTM Infastructure lead

I learned SO much

“I loved how in-depth this certification is! I learned so much that I had no idea about when it comes to deliverability. This has changed how I work now as an email marketing specialist.”

Mariah Garber Email Specialist, Lightcast

YOUR QUESTIONS ANSWERED

Email Deliverability FAQ's

Yes. Deliverability is decided by the mailbox providers, and Gmail, Microsoft, Yahoo and Apple apply the same systems everywhere in the world. A Gmail address in Sydney is assessed exactly the same way as one in Solihull (my hometown in the UK).

What changes by region is your list composition. A US list skews more heavily to Gmail and Yahoo. A European B2B list skews to Microsoft and corporate gateways. The training teaches you to work out your own mix and what it means for you, so it adapts wherever you send.

Over 300 professionals have been certified so far, across 14 countries and industries.
All three, and they're covered separately because they can behave differently.

B2B senders deal with corporate gateways like Mimecast, Proofpoint and Barracuda, which sit in front of the inbox, filter more aggressively and give you almost no visibility. One person marking you as spam can suppress your domain for their entire company.

B2C and D2C senders deal with higher volumes, more disengaged contacts, the Promotions tab, and Gmail's engagement-driven filtering, which is unforgiving at scale. Peak season is usually where it bites.
No. It's built for marketers, not technical specialists. The whole point is to make deliverability something you can understand and act on.

There is one technical section covering authentication (SPF, DKIM and DMARC). It's three DNS records, with a walkthrough showing exactly what to check and what correct looks like. If someone else controls your DNS, you'll know precisely what to ask them for.

Everything else is your data, your list and your sending behaviour. That's marketing.
It depends how much you rely on email, not how big the list is.

If you send to a few hundred people twice a year, probably not. If email drives leads, bookings or revenue, a 2,000-person list with 20% landing in spam is still 400 people who never hear from you.

With smaller volumes, you have less data to work with, and some placement testing tools are less reliable. The training covers how to handle that.
You don't need a problem to do it (and you should do it regardless).

If your deliverability is healthy, this is how you prove it and keep it that way rather than assuming. If it isn't, you find out before it costs you a quarter of results.

Either way you end up with a skill you'll use on every send. Deliverability shifts constantly, because providers reassess senders continuously, so knowing how to check is worth more than any one-off fix.
Three modules across 70 lessons: Learn, Audit, Fix.
- Bite-sized video lessons, most under five minutes
- In-depth written learning guides
- Fillable templates, frameworks and calculators
- Exercises and step-by-step walkthroughs
- Up to six monthly live sessions with Beth
- Certification on completion
Module 2 is the core. You run the full six-step audit on your own account, using the same templates used on live client work.

The Email Deliverability Guide

This is a full reference guide with definitions, frequently asked questions and knowledge to give you a head start.

Download

Simple Email Deliverability

This blog breaks down email deliverability for marketers in a simple and easy way. It covers myths, definitions and more.

Read blog

Deliverability metrics you should track

This blog is a great way to learn what deliverability is and the exact 3 metrics you need to be tracking in your organisation.

Read blog

What is email deliverability (and why it matters)

Email deliverability is about whether your emails reach the inbox, and what affects that outcome over time.

It’s not just authentication or avoiding spam words (this is not a thing). Deliverability is shaped by technical setup, data quality, engagement behaviour, content patterns, and how inbox providers assess sender reputation.

For B2B marketers, corporate spam filters and IT-controlled inboxes add extra complexity. For B2C and D2C teams, small changes in engagement or sending behaviour can quickly impact revenue. This is why deliverability needs ongoing monitoring, not one-off fixes.

Useful reads:

The six-step deliverability audit process

This is the framework I use when auditing client accounts.

1. Situational analysis
Understand what’s happening now and where deliverability issues are showing up.

2. Technical checks (authentication, setup, alignment)
Make sure authentication, domains, and setup aren’t quietly hurting inbox placement.

3. Reputation & infrastructure review
Assess how inbox providers currently see and trust your sending setup.

4. Data & sending hygiene (validation, suppression, cadence)
Check list quality, suppression, cadence and behaviour signals that affect reputation.

5. Inbox placement testing & engagement tracking
Test where emails actually land (inbox vs spam) and find out your average spam rate per provider.

6. Interpretation, root cause matrix → prioritised action plan
Turn findings into a clear, prioritised fix plan using root-cause analysis.

Useful reads:

Improving and protecting deliverability over time

Deliverability isn’t something you “fix once”. It requires consistent monitoring, testing, and sensible sending behaviour.

This includes:

list hygiene and re-engagement done properly
managing sending patterns and volume
protecting engagement signals
knowing when (and how) to pause, slow down, or re-warm

The goal isn’t perfection but more about control and resilience.

Useful reads:

Tools I use for deliverability checks and testing

These are tools I regularly reference for audits, monitoring, and testing. They’re not magic fixes but they’re inputs into better decision-making and help you understand email deliverability issues and performance.

MXToolbox
ZeroBounce
Warmy
GlockApps
Google Postmaster
Microsoft SNDS
Instantly

How to get a deliverability audit or email audit

If you need hands-on support, I also offer done for you deliverability and email audits.

These audits go deeper than tools or surface checks and are designed to identify root cause, not just symptoms. They look at technical setup, data quality, engagement behaviour, inbox placement, and sending patterns, then translate findings into clear, prioritised actions and a roadmap.

This is the same audit framework taught in the certification, applied directly to your account, with recommendations tailored to your business, audience, and sending model.

Find out more about my Email Deliverability & Email Audit Services

If you’re not ready for a full audit yet, the certification is the best place to build understanding and learn how to run your own checks first.

From the Vault: deliverability insights & breakdowns

The Vault is where I publish deeper dives into email, deliverability, and inbox behaviour — beyond surface-level advice.

If you want to build long-term understanding (not just quick fixes), this is a good place to start.

Visit the Email & CRM Vault here.

RE:markable - the weekly email about emals

RE:markable is my weekly email covering:

deliverability updates
inbox and ESP changes
practical email marketing insights and strategies
upcoming masterclasses and resources
and the occasional bit of inbox mischief

Sign up to RE:markable here.

What is email deliverability training?

Email deliverability training teaches marketers how inbox placement really works, how to diagnose issues using audits and testing, and how to protect sender reputation over time, which is exactly what these masterclasses are designed to do.