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Trusted by B2B teams across the UK, US & Europe. We've booked sales meetings with:
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Tesla logo
vodafone-logo
vw-logo
capita-logo
Chanel logo
Decathlon logo
IKEA logo
DHL logo
ASOS logo
Cisco logo
Halfords logo
GoCardless logo
H&M logo
Moonpig logo
Nestlé logo
Nike logo
John Lewis logo
Mastercard logo
NHS logo
Ocado logo
IRIS Software Group logo
OneCom logo
Samsung logo
Sainsbury's logo
Reach logo
Sage logo
Skyscanner logo
SPAR logo
Salesforce logo
Shark Ninja logo
Sony logo

Most senders fell off in 2024

When email providers tightened their rules in 2024, non-compliant senders collapsed. Flowd clients held at 95%+ inbox placement, because the infrastructure was already built to pass.

The 2024 email provider rules split the field. The top held at 95%+ while non-compliant senders collapsed. We keep our clients at the top.
Sources: Validity 2025 Benchmark Report; GlockApps 2025–26; Google/Yahoo 2024 sender rules. Flowd figure from client inbox placement monitoring across 60 accounts.
1

AI flooded inboxes

Templated outreach at infinite scale. Every inbox became a battleground.

2

The walls went up

Google, Yahoo & Microsoft tightened authentication. Most senders locked out.

3

Buyers tuned out

Mass personalisation stopped fooling anyone. {first_name} is no longer enough.

Everyone blames spam words.  
The problem is usually infrastructure.

A brilliant email still dies in spam if the infrastructure's wrong. We set up the domains, authentication, and warmup properly, then keep 95%+ of sends landing where buyers actually read them.

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Ryan
Head of Customer Success, Flowd

The last time you’ll worry about inbox placement.

The big three inbox providers now share one rulebook, and since late 2025 they enforce it hard. Every Flowd account was built to pass it before enforcement landed, and we monitor placement daily so it stays that way.

1 FEB 2024

The wall goes up

Google and Yahoo enforce authentication and spam-rate thresholds. Flowd accounts already cleared the high bar.

5 MAY 2025

Microsoft matches

Outlook adopts the same bulk-sender requirements. The three biggest inboxes now share one rulebook.

NOV 2025

Enforcement bites

Grace periods end and non-compliant senders plummet out of inboxes. Our clients held at 95%+ placement.

ONE RULEBOOK · THREE PROVIDERS · FULLY ENFORCED
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Five requirements now decide whether your email lands. The playbook breaks down all five, so you can check your setup against them today.

Email with your domain nowhere near it.

Cold outreach goes out on separate domains that mirror yours, fully warmed and authenticated. Your real domain never takes the risk.

Ring-fenced

flowd.co.uk

your business domain · never sends cold
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agencyflowd.co.uk

SENDING DOMAIN
SPF
DKIM
DMARC
WARMED

byflowd.com

SENDING DOMAIN
SPF
DKIM
DMARC
WARMED

+ additional domains, scaled with volume

It's an operation, not a campaign

This is the recurring work that keeps 95% of sends landing. Read the whole board - that’s the point.

Monthly

8 TASKS
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Full DNS & auth audit SPF · DKIM · DMARC
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Blacklist sweep across 40+ RBLs
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Sender-score & IP reputation review
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DMARC aggregate report parse
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Domain warm-cycle planning
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New mirror-domain provisioning
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Content pattern refresh - spintax pool
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Deliverability KPI report to client

Per Rotation

6 TASKS
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Inbox rotation re-balance
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Volume caps re-set per inbox
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Domain health scoring & ranking
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Underperformers pulled → restoration
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Warm-up traffic re-allocation
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Seed-list refresh

Weekly

8 TASKS
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Placement tests: Google · Microsoft · Yahoo
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Spam-folder pulls & pattern review
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Bounce-code triage & list scrub
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Engagement-signal review per segment
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Throttle adjustments on catch-alls
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Postmaster tools check
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Domain-health alert review
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Restoration progress checks
5.0
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The main benefits of working with Flowd have been a fundamental acceleration of our access to new customers, new markets and new revenue that we wouldn’t have been able to target or understand without the expertise of Flowd.

Warren Kozera
Non-Executive Director

Booked meetings start  in the inbox.

Protected domains, daily monitoring, and a dedicated deliverability team behind every send. 95%+ inbox placement, holding.