A DACH CRM agency removed 13% of risky addresses before warming up client domains
Their D2C e-commerce clients arrived with legacy lists of unknown quality. A pre-warm-up verification pass made sender warm-up actually work.
Persona: A DACH-region CRM and email-marketing agency
What was breaking
New client onboarding always started the same way: the client handed over a list, the agency tried to warm up a new sending domain, and the warm-up stalled because the list was a graveyard. The agency's playbook depended on first-week deliverability; bad lists meant a slow, painful start.
How emailzeno fit the workflow
Every client onboarding now begins with an emailzeno batch pass. The output: a clean cohort for warm-up, a risky cohort for low-frequency re-engagement, and a dead cohort that's suppressed. Warm-up sequences run only on the clean cohort. Quarterly re-verification keeps the segments honest as lists age.
What changed
Average client warm-up time fell. Inbox placement on the major German free-mail providers held steady through every warm-up. The agency stopped losing client renewals because of slow first-quarter results.
“Clients judge us on the first month. Verification is the only thing that consistently makes the first month look the way the proposal promised.”
The emailzeno building blocks
Batch + scoring
Each address gets a quality score plus a status — clean, risky, undeliverable. Builds your warm-up cohorts automatically.
German/EU compliance
EU-region hosting, German-language support, DPA, BDSG-compatible processing terms.
Klaviyo-native sync
For Klaviyo-based clients, results push back into segments natively without webhook plumbing.
Questions teams ask before adopting
Run the same play.
First 300 verifications free. EU hosting, Klaviyo-native.