Import & Map Prospect Lists
Upload clean CSV lead lists with custom merge fields (First Name, Company, Title, Custom Icebreaker) and automatic duplicate elimination.
B2B Sales Prospecting
Cold B2B Outreach Software Built to Book More Meetings
Centimailer gives sales teams, SDRs, and founders the infrastructure to land cold emails in primary inboxes, bypass spam filters, and generate qualified sales pipeline without per-seat taxes.
✓ 99.4% Inbox Placement · Automated Rate Pacing
CSV Lead Field Mapping
First Name →
{{first_name}}
Company Name →
{{company}}
Custom Icebreaker →
{{icebreaker}}
Prospect Email →
{{email}}
Built to Solve Real Outreach Headaches
Why growth leaders, SDRs, and agencies are replacing legacy software with Centimailer.
✕ The Traditional Cold Email Trap
- – Paying $60–$100 per SDR seat every month, making scaling prohibitively expensive.
- – Sudden account bans from marketing ESPs that prohibit outbound prospecting.
- – Queue spikes that blast hundreds of emails at once, triggering Gmail/Outlook spam flags.
- – Multi-day delays waiting for manual sender domain verification.
✓ The Centimailer Advantage
- ✓ Straightforward volume pricing: send 3,000/mo free, 20,000/mo for $9. Zero per-seat markups.
- ✓ Engineered specifically for outbound cold prospecting with RFC-compliant headers.
- ✓ Automated queue throttling spaces dispatches evenly to mimic natural human sending.
- ✓ Instant sender identity activation with zero verification roadblocks or hold times.
SIMPLE 3-STEP PROCESS
How It Works on Centimailer
From prospect list to primary inbox in three straightforward steps.
Craft Personalized Pitches
Compose personalized plain-text or light-HTML outreach messages with dynamic tags, custom fallback values, and preview testing.
Paced Dispatch & Inbox Placement
Send through throttled multi-IP delivery clusters. Monitor real-time delivery status, unique opens, and engagement analytics.
Enterprise-Grade Cold Email Capabilities
Engineered from the ground up for high deliverability, sender independence, and predictable scaling.
Multi-Domain Sender Pools
Distribute outbound volume across multiple authenticated sending domains to safeguard your primary corporate domain reputation.
Dynamic Merge Tag Personalization
Import CSV lead lists with custom prospect fields (First Name, Company, Custom Icebreaker) for authentic 1-to-1 personalization at scale.
Automated Queue Throttling
Avoid spam triggers with intelligent queue pacing that distributes dispatches evenly over time to match natural human sending patterns.
Real-Time Delivery & Unique Open Tracking
Track campaign delivery, unique open rates, and click engagement in real time from a centralized, distraction-free dashboard.
Instant Sender Activation
Add sender identities and domains without multi-day approval delays or manual confirmation emails. Send immediately.
Prepaid & Crypto Billing Flexibility
Fund campaigns with credit card, PayPal, or 150+ cryptocurrencies (Bitcoin, USDT, Ethereum) with automated invoice crediting.
FREQUENTLY ASKED QUESTIONS
Clear Answers for Your Team
Everything you need to know about deliverability, pricing, and compliance.
Is cold B2B emailing legal with Centimailer?
Yes. Cold B2B outreach is 100% legal under the US CAN-SPAM Act, EU/UK GDPR (under Legitimate Interest, Article 6(1)(f)), and Canadian CASL. Centimailer automatically inserts RFC 8058 one-click List-Unsubscribe headers, clear sender identification, and physical address footers to keep you fully compliant.
How does queue throttling protect my sender reputation?
Blasting hundreds of emails simultaneously triggers algorithmic spam filters at Google and Microsoft. Centimailer automatically spaces sends evenly over time with automated queue pacing and cooldown intervals, mimicking organic human communication.
Do I have to pay per user or per connected inbox?
No. Unlike legacy sales engagement platforms that charge $50–$100 per seat, Centimailer charges based strictly on sending volume. You can have unlimited team members and sender identities without per-seat penalties.
Can I personalize emails with custom CSV fields?
Yes. Centimailer supports dynamic merge tags for first names, last names, company names, job titles, and custom icebreaker snippets directly from your CSV upload.
Ready to Land in Primary Inboxes?
Join hundreds of growth teams, SDRs, and agencies scaling their outbound campaigns with Centimailer. Start free today with 3,000 monthly emails.