Cold Email Infrastructure & Deliverability
Domains, mailboxes, SPF, DKIM, DMARC and warm-up: we build the technical foundation so your emails land in the inbox, not in spam.
or by email:service@echtsquad.com
The problem
Outreach emails end up in spam even though the copy and targeting are right. The usual causes are missing domain authentication, too many emails from brand-new mailboxes, or sending from your main domain, which damages its reputation along the way.
What is included
- Separate sending domains to protect your main domain
- SPF, DKIM and DMARC configuration
- Creation and setup of sending mailboxes
- Mailbox warm-up over several weeks
- Connection to your outreach tool
- Blacklist and deliverability checks
- Optional: ongoing monitoring of domains and mailboxes
What you get
- Authenticated sending domains
- Configured, warmed-up mailboxes
- Documentation of every DNS record
- Connection to your outreach tool
- Deliverability check before the first send
Cold email with Instantly
How we run outreach campaigns
Our standard setup for B2B outreach: infrastructure, lists, sequences and reporting – all from one team.
Separate sending domains & inboxes
Dedicated outreach domains protect your main domain. SPF, DKIM and DMARC are set up cleanly; inboxes are provisioned through Instantly.
Warm-up
Every inbox builds reputation step by step over several weeks before the first campaign starts.
Lead lists
Researched, verified lists by your criteria – industry, role, region, company size.
Personalised sequences with variants
Multi-step sequences with personalised openers, several copy variants and automatic follow-ups.
A/B tests
Subject lines, openers and calls to action run against each other; the winners are rolled out.
Reply handling
Replies are classified; interested contacts go straight to your sales team or CRM.
Our own tool
A command center for many campaigns at once
For clients with many campaigns, accounts and lead lists we built our own command center on top of the Instantly API. Create campaigns, assign inboxes, import leads and watch every metric live – from one screen instead of dozens of browser tabs.


Process
How it works
- 01
Clarify needs
We discuss target markets, planned volume and your existing domains and tools.
- 02
Set up the tech
We configure and verify domains, DNS records and mailboxes.
- 03
Warm-up
The mailboxes build a good sending reputation step by step over several weeks.
- 04
Hand over
You receive send-ready infrastructure with documentation and clear sending limits.
FAQ
Questions about this service
Is cold email legal?
It depends on the market. In Germany, unsolicited marketing emails are heavily restricted even in B2B (Section 7 UWG), while the UK and US have different rules. We build the technical setup; please have your campaign reviewed legally before you start.
Why not just send from our main domain?
Because spam complaints or high bounce rates would then hurt your main domain's reputation, and with it your everyday emails to customers. Separate sending domains protect your day-to-day business.
Can you guarantee inbox placement?
No, and nobody honest can. We put the technical foundations in place and monitor signals such as blacklists. Copy, list quality and volume affect deliverability just as much.
Email Marketing
More services in this area
- Newsletter Setup & Management
- Automated Email Sequences
- Email Template Design
- List Building & Segmentation
Intro call
Cold Email Infrastructure & Deliverability – let’s get started.
In a free intro call we clarify what you need, what it costs and when it will be done. No sales pressure.
or by email:service@echtsquad.com