Cold outreach is never just about writing emails. Behind the scenes, teams have to manage domains, provision mailboxes, warm them up, and make sure every message reaches the inbox. Tools like Sendcrux have stepped in to simplify this process by combining infrastructure automation, mailbox warm-up, and a built-in CRM under one roof. It’s an attractive choice for businesses that want to launch campaigns quickly.
But while Sendcrux focuses on automation and infrastructure, Woodpecker remains the benchmark for long-term deliverability, smart sequencing, and reliable campaign control.
What is Sendcrux?

Sendcrux is an outreach CRM designed to help teams set up and scale cold email campaigns without juggling multiple tools. It automates the technical setup of domains and mailboxes, manages DNS records, and even handles renewals—all without requiring developer input.
The platform also integrates a prospect database and email automation features, so users can create sequences, test variations, and manage leads directly inside the tool. For many, this combination of infrastructure and outreach in one platform removes the need to stitch together separate solutions.
Core Capabilities of Sendcrux
Mailbox & Domain Automation
Sendcrux provides full automation for mailbox creation, domain procurement, alias setup, and license management. Admin tasks like updating DNS or renewing domains are handled directly within the platform, so teams don’t have to jump between multiple services.
Warm-Up & Deliverability
The platform includes automated warm-up for new mailboxes and domains. Using seed email lists, Sendcrux gradually increases sending volume to improve deliverability. By cycling across multiple domains and IPs, it reduces the risk of triggering spam filters.
CRM & Campaign Engine
Unlike pure infrastructure tools, Sendcrux also offers a lightweight CRM layer. Users can import contacts, segment lists, design sequences, and automate follow-ups. It supports A/B testing and includes AI-generated templates to speed up campaign creation.
Scalability & Integrations
Sendcrux supports bulk import of Google Workspace and Office 365 mailboxes, with sending limits depending on the plan. It integrates with popular platforms like HubSpot, Zoho, Zapier, and Twilio (SMS/WhatsApp), and also provides API access for teams that want to connect custom workflows.
Pricing & Plans
Sendcrux offers clear, tiered pricing for different stages of growth:
- Free Plan: 1 SendcruxBox mailbox, 500 contacts, 50 verification credits, 20 warm-up credits per day, and a handful of AI content credits.
- Solo ($29/month): 5 mailboxes, 2,500 contacts, 100 warm-up credits per day, and 50 AI content credits.
- Startup ($99/month): 15 mailboxes, 10,000 contacts, 300 warm-up credits per day, plus expanded CRM capacity.
- Pro ($199/month): 45 mailboxes, 20,000 contacts, 900 warm-up credits per day, and the highest allocation of AI credits.
This structure makes it easy for teams to estimate their outreach capacity and align pricing with scale.
Where Sendcrux Excels
Sendcrux is particularly strong in infrastructure automation. It takes care of domain and mailbox setup, warming, and rotation—tasks that are time-consuming if done manually. For teams managing multiple domains and running volume-heavy campaigns, this saves both time and resources.
Its appeal also lies in consolidation. Instead of using one tool for warm-up, another for CRM, and yet another for sending, Sendcrux combines these steps into one workflow. For smaller businesses or fast-scaling startups, that can mean fewer moving parts and a faster route to getting campaigns live.
Where Woodpecker Still Has the Edge

While Sendcrux is strong in setup and infrastructure, Woodpecker focuses on the part of outreach that ultimately drives results: customer engagement.
- Smarter campaign orchestration: Woodpecker automatically stops sequences when replies come in, lets you design multichannel workflows with LinkedIn and email, and ensures outreach feels human rather than automated.
- Deliverability insight: Beyond warm-up, Woodpecker tracks inbox placement, sender reputation, and deliverability trends over time—helping teams protect domains and IPs in the long run.
- Agency and team features: With a unified inbox, admin access, follow-up statistics, and detailed analytics, Woodpecker is built for agencies and larger teams that need visibility and control over several campaigns at once.
In short, Sendcrux helps teams launch quickly, but Woodpecker ensures campaigns deliver, stay effective, and scale with precision.
FAQ
What is Sendcrux?
Sendcrux is an outreach CRM that combines domain and mailbox setup, automated warm-up, CRM features, and email automation in one platform. Learn more about cold email setup.
When should you use Sendcrux?
It’s most useful for teams that want to streamline technical setup and launch cold emails quickly, especially across multiple domains. For advice on cold email dos and don’ts, consider Woodpecker’s resources.
Is built-in warm-up enough?
Sendcrux’s automated warm-up works for fast deployment, but long-term inbox health benefits from continuous monitoring—something Woodpecker provides with deliverability safeguards.
How does Sendcrux compare to Woodpecker?
Sendcrux consolidates infrastructure and outreach features. Woodpecker, on the other hand, specializes in sequence depth, reply-based automation, and long-term deliverability insights. Many teams use Sendcrux to set up infrastructure and Woodpecker to optimize engagement.
Conclusion
Sendcrux is a capable all-in-one platform for businesses that want to simplify infrastructure and outreach efforts. By automating domain setup, mailbox warm-up, and CRM-driven email campaigns, it helps teams launch cold email campaigns faster and with less technical hassle.
But launching is only half the story. For teams that want to maintain deliverability, build real conversations, and run campaigns that adapt to replies, timing, and context, Woodpecker remains the stronger choice. In practice, the best results often come from combining both: Sendcrux as the setup engine, and Woodpecker as the campaign driver that ensures every message reaches, resonates, and converts.