
Purpose-Built Tools for B2B Growth
Empowering outreach systems
Effortlessly scale your cold email campaigns. Build, monitor, and optimize your outreach with infrastructure designed for high deliverability, compliance, and growth all in one streamlined platform.
- Automate cold email sending with precision and speed
- Integrate with CRMs and tools for real-time data syn
- Ensure high inbox placement with authentication and warm-up protocols

Reach Your B2B Prospects Effortlessly
We make managing cold email campaigns easy. With mailzy.us, you get streamlined infrastructure to automate outreach, improve deliverability, and connect with decision-makers without technical hurdles.
Key Features of mailzy.us Cold Outreach System
Domain & IP Warm-Up
Automatically warm up your sending domain and IPs to build a solid sender reputation, improving email deliverability and reducing bounce rates.
Inbox Placement Monitoring
Track where your emails land Inbox, Promotions, or Spam. mailzy.us helps you maintain strong deliverability and optimize every campaign’s effectiveness.
High-Volume Sending Support
Scale your cold email outreach effortlessly with infrastructure built to handle high-volume sending across multiple domains and IPs without compromising performance.
CRM & Tool Integrations
Seamlessly connect with your favorite CRM and outreach tools. mailzy.us ensures your email operations stay synchronized and efficient.
Deliverability Optimization
Automatically manage SPF, DKIM, and DMARC settings to ensure compliance and protect your domain’s reputation in every campaign you send.
Performance Analytics
Get real-time insights into open rates, click-throughs, and replies. mailzy.us provides clear reporting so you can fine-tune your strategy with confidence.
Frequently Asked Questions
These FAQs should help clarify how our platform can streamline and enhance your B2B outreach with reliable, scalable cold email infrastructure.

Do you have monthly plans?
Currently, we don’t offer monthly plans due to the initial costs involved in domain purchase and other services.
Can I send emails to free email hosting emails (@gmail.com, @yahoo.com, etc..)?
mailzy.us is a platform for B2B cold email only. It’s forbidden to email individuals without their explicit consent. So, you can only target corporate mailboxes.
Although, it’s technically possible to send emails to all email hosting providers.
Your account might get suspended if you send significant volume of emails to individuals.
Can I transfer my own domains to mailzy.us?
Currently existing domains cannot be transferred, they’ll have to be registered by us. We understand the convenience it would provide and we will introduce domain transfer options in the future.
Do I own the domains you’ve purchased?
While you are using our service, domains are registered with us, enabling us to facilitate processes such as creating emails, IP rotation, and more.
You can request to have the domains returned at any time, and we will transfer them back to you without any charges.
Is it mandatory for me to add unsubscribe links to my emails?
It’s recommended for a better domain reputation, but it’s not mandatory.
Do you handle email warm-up?
Yes, we provide AI Warm-up network with thousands of in-browser actions performed by AI Agents.
I’m an agency. What happens to the mailboxes if my client churns?
You can delete email accounts and create new ones. You purchase licenses, not specific mailboxes.
Do you have a sending limit per account?
Currently, there is a hard limit of 60 emails per day per email account (30 for warm-ups, 30 for prospecting). You can gradually increase the number of warm-up emails by 1-2 per day, but we still recommend warming up accounts over 10-14 days.
