Email Deliverabilty Learning Hub for Recruitment Agencies
Tips, guides and detailed explanations of all the acronyms you need when fixing email delivery issues. SPF, DKIM, DMARC, BIMI and more! Scroll down to browse or search below for your hot topic.
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Our Most Recent Email Deliverability Articles
The Main Character Method: A Six-Step Framework for Recruitment Emails That Actually Get Replies
TL;DR Most spec emails fail because the recruiter is the subject of almost every sentence. The hiring manager barely features. The Main Character Method is a six-move framework that puts the reader at the centre of every email, from the opening line to the close The...
You’re Not the Hero (And Your Emails Are Costing You More Than You Think)
TL;DR Speculative recruitment emails still work, but they've always been a low-engagement play, and everyone in recruitment knows it What's changed is the deliverability landscape: low open rates and spam complaints now actively damage your domain reputation in ways...
Your Candidate Database Could Be Hurting Your Email Deliverability
TL;DR Recruitment ATSs accumulate years of contact data with no automatic address validation — those records go stale fast Repeatedly mailing dead addresses on personal mailbox platforms (Gmail, Yahoo, Hotmail, iCloud) will damage your sender reputation with those...
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Mastering Email Automation in Recruitment
Email Beyond the First Hello In the recruitment world, the initial contact is just the beginning. The real magic happens in the follow-ups. The check-ins, the nudges, the "just making sure you're still breathing" emails. These aren't just niceties; they're essential...
Email Content Fingerprinting: The Invisible Force
Is Fingerprinting Causing Your Deliverability Woes? You're probably already juggling SPF records, DKIM alignment, and keeping your sender reputation polished like a trophy. But if your carefully crafted email campaigns are still ghosting the inbox, there's a...
Preparing the Internet For The Arrival of Your Campaign
The Power Of Pre-Seeding Your Email Outreach You’ve got a big campaign coming up. Maybe it’s a new job alert blast, a webinar invite, or a reactivation push to cold leads. You want it welcomed to inboxes like royalty, not turned away at the door. You want it to land,...
Why Your Email Open Rates Are Lying to You
And What You Should Track Instead Let’s get this out of the way. Your open rate is not real. Well, not fully at least. It’s a rough guess based on a tiny image that may or may not have loaded. And thanks to modern spam filters and email security tools, even that guess...
What Are Email Security Gateways and Why Should You Care?
The Reason Behind A Billion Dollar Industry You wrote a brilliant email. Personalised it. Tracked it. Hit send. But your client never saw it. Why? Because it got eaten alive by an Email Security Gateway before it even had a chance. Most people think spam filters live...
Does Email Warm-Up Actually Work? What Recruitment Agencies Need to Know
Yes. But probably not the way you think. If you've tried a warm-up tool and still ended up in spam, you're not alone. Most of the agencies I speak to have either skipped warm-up entirely or run it for two weeks, seen no dramatic change, and assumed it wasn't working....
Forwarding An Email As An Attachment: Outlook, Gmail, Apple
Forwarding an email as an attachment is like sending a sealed envelope within another envelope. It preserves the original message's integrity, including all headers and metadata. This is crucial when diagnosing delivery issues, reporting suspicious emails, or simply...
Yahoo’s Complaint Feedback Loop: The Early Warning System Recruiters Are Missing
TL;DR Yahoo's Complaint Feedback Loop (CFL) tells you exactly who marked your email as spam (something Google Postmaster doesn't do) Yahoo and AOL addresses are common in older candidate databases; complaints from those contacts quietly damage your sending reputation...
Why Being Brave With Unsubscribe Keeps You Out of Spam
If there’s one part of the email that marketers love to hide, it’s the unsubscribe link. Usually tucked into 8-point grey text at the bottom of a ten-screen monster newsletter, like it’s some sort of shameful secret. But here's the truth: making it easy to unsubscribe...
Branded Tracking Links Beat Generic Ones Every Time
So you’re sending out emails, tracking clicks and feeling pretty smart. But your links all start with something like trk.mailplatform.com or mailer123.activecampaign.net. Not yours. Not even close. Here’s the problem. Every time you send someone to a link that doesn’t...
Gmail’s 102KB Limit: How Email Size Kills Your Open Rates
TL;DR Gmail clips any email over 102KB. Cutting off the bottom of your message, hiding your CTAs, and stopping your tracking pixel from firing. If your open rates look healthy but click-throughs are low, a clipped email might be why. This post explains what causes it,...
How Bitly Trashes Your Deliverability
Other Shady Shorteners Are Available. Ah, Bitly. The link shortener of choice for people who love mystery. What’s behind that cryptic “bit.ly/3uZxYqF”? A cat video? A phishing site? Malware in a trench coat? No one knows. Not your reader, not the inbox algorithm, and...
The Cold Truth About Burner Domains
Smart Outreach or Spammy Escape Hatch? Cold outreach in recruiting is a bit like pineapple on pizza. Controversial, messy, and oddly effective when done right. But there's a fine line between strategic outreach and “why am I in spam jail again?” That’s where burner...
Why Email Services Don’t Hand Out SPF Records Anymore
(Even Though They Really, Really Should) So you’ve signed up for a shiny new email tool, maybe Mailchimp, maybe SendGrid, maybe something your cousin’s startup built. You follow the setup guide like a good internet user. It tells you to add a DKIM record. Great. Job...
Why SPF Limits Might Kill Your Emails
Beware the SPF 10-record lookup limit Let’s talk about one of the most annoying quirks in email authentication: the SPF 10-lookup limit. It’s obscure, it’s silent, and if you don’t know it’s there, it can completely wreck your deliverability without so much as a...
Drag-and-Drop from Outlook to Your CRM Just… Stopped Working
If you're one of the many folks who used to drag email attachments from Outlook straight into your CRM like a digital magician pulling files out of a hat, and then suddenly found that trick doesn't work anymore, you're not losing your touch. You're just using New...
Seeing rDNS issues in your delivery tests?
Why rDNS is defunct for 365 users Have you ever used a warmup tool, run delivery tests or tools like MX Toolbox and it says you need to set up reverse DNS (rDNS)? And then scratch your head for hours Googling it to see what the problem is? Have you stare into the...
How to Create a 365 Global Admin Account
(So I Can Help You Fix Your Email Headaches) Look, I get it. Microsoft 365 is mostly great... until it isn’t. Sometimes email delivery goes sideways, DNS records throw a tantrum, or your tenant decides to just vibe in a weird way. That’s where I come in. To help...
The Recruiter’s Email Compliance Action Plan
Stay Ahead of Microsoft's Crackdown If you're in recruitment, you already know email is your lifeline. Whether you're nurturing candidates, reaching out to clients, or keeping your talent pools warm, inboxes matter. A lot. We’ve already covered the big news: from 5th...
TLS Reporting: The Email Security Radar
You Didn’t Know You Needed It You know what’s worse than an email getting intercepted? Not knowing it happened. That’s where TLS Reporting (a.k.a. TLS-RPT) steps in. It’s basically your email’s protector, telling tales on who’s trying to send you email and whether...
What is MTA-STS And Why It Matters
Beginners Guide, Honest! Email is basically the plumbing of the internet. It’s not glamorous, but when it breaks, things get messy fast. And one of the big reasons emails can go wrong? They’re shockingly easy to hijack in transit... unless you’ve got something like...
Microsoft Is Closing Every Door on Recruitment Email
What Microsoft Really Wants (And What You Need to Do About It) Recruitment has always run on email. You reach out to candidates. You check in with clients. You build sequences, send alerts, and follow up faster than your competitors can finish their second coffee. In...
365 Shared Mailboxes: MERRL Strikes Again
How "Free Mailboxes" Could Be At Risk Shared mailboxes have long been a recruitment staple. You use them for job alerts, team inboxes, and marketing updates. They’re simple to set up, require no licence, and everyone assumes they’re “safe”. But under Microsoft’s new...
Microsoft’s Next Hit At Recruitment Email
From TERRL to MERRL: Recruiters Beware First came TERRL, the Tenant External Recipient Rate Limit. Microsoft introduced it quietly, limiting how many external recipients your Microsoft 365 environment can contact in a 24-hour period. It scales based on your licence...
Microsoft Is Breaking Recruitment Email
The Terror of TERRL And What You Need To Know Recruiters, your business relies on email to send job alerts, attract talent, and support your BDM activity. And if you're doing this through Microsoft 365, you're probably sitting on a ticking time bomb. And no, that’s...
Microsoft Is Joining the Email Crackdown
What That Means for Recruiters Welcome to the Inbox Apocalypse. Again. First it was Google. Now it’s Microsoft’s turn to give bulk emailers a not-so-gentle nudge towards proper authentication. From May 5th 2025, Outlook.com (which includes all the hotmail.com,...
How to Warm Up a Domain for Better Email Deliverability
So, you’ve just bought a shiny new domain. Exciting times.But to the email world, you’re a total stranger, and strangers don’t get inbox privileges straight away. Here’s how to build trust with Gmail, Outlook, and friends before you send your first big campaign. Why...
Why Your Emails Aren’t Reaching Candidates
(And How to Fix It) You’re sending emails, but they’re not landing in inboxes. Candidates aren’t replying, your open rates are terrible, and you’re wondering if your emails are just vanishing into the void. They probably are. Email providers (Gmail, Outlook, Yahoo)...
Talking Email Deliverability: The RecTalk Podcast
Cracking the Code to Email Domination February 2025 marked the debut of Ben Fielding on the RecTalk podcast, and if you’ve ever wondered why your emails mysteriously vanish into the void of spam folders, this episode is mandatory listening. "Inbox or SPAM? Cracking...
The Ultimate Email Warm-Up Strategy for Recruiters
How to Build Email Reputation Fast Recruiters send a lot of emails. But if you start firing off hundreds or thousands from a brand-new domain or email address, don’t be surprised when your messages land straight in spam (or worse, get blocked completely). Email...
Recruitment Agency Statistics – Failing to Add the Correct DNS
We assessed the state of email for 490 recruiters in the UK and US, focusing on their DNS records to measure their maturity.
Correct implementation of SPF, DKIM and DMARC are key tools in the trust and deliverability of your emails.
Our research into UK agencies shows many domains miss the basic settings, which will directly affect their deliverability and ROI from email outreach.
A third had SPF records missing from their setup, resulting in legitimate sending sources beign untrusted to send emails from their domain.
Nearly half had DKIM records missing, meaning that emails were missing a vital verification that they were legitimate emails.
A third of agencies assessed had failed to implement any form of DMARC, which is the latest and critically important DNS record to protect your domains reputation.
Finally, only 20% of rectuitment agencies had any DMARC reporting in place. Without this, you are blind to SPF and DKIM errors that are affecting the reputaion of your domain.
Why Recruiters Choose Quinset
Technical foundations that inboxes trust
We align SPF, DKIM and DMARC correctly, sort routing and TLS, set safe sending limits, and then expand them. So your domain reputation improves and stays healthy.
Data & content that won’t trip spam filters
Clean lists, sensible cadence, and copy that avoids common triggers. We’ll give marketing and consultants guardrails and templates that lift replies without risking the domain.
Built for how recruiters work
Sequences, ATS notifications, and high-volume day-to-day email all need different handling. We tune each path so candidate and client messages arrive reliably.
Fast answers through our vendor network
We work with leading ATS/CRM and rectech providers. If your issue touches tooling, we’ll coordinate fixes so you’re not stuck between support teams.






























