ColdMailServer
Infrastructure

Dedicated, Pre-Warmed Email Servers & SMTP.

Deploy your own isolated outbound SMTP relay in minutes. Run on pre-aged IP ranges with automated reverse DNS (rDNS) and authentication alignment.

app.coldmailserver.com
SMTP Relay Configuration● Status: Active & Routed
SMTP Host:smtp.coldmailserver.com
Port:587 / 465 (SSL/TLS)
IP Assignment:Dedicated (Clean Pools)
Reverse DNS (PTR):Aligned & Verified
Isolated server container and SMTP setup specs
Technical Architecture

Operator-Grade SMTP Infrastructure

Every Cold Mail Server is provisioned with high-deliverability technical parameters:

IP Pool Age Management

We own and manage our IP blocks. These pools routing quiet, high-reputation validation traffic before they are assigned to your dedicated server, bypassing the initial Gmail sandbox.

Strict Container Isolation

Unlike shared SMTP providers where one bad sender blacklists the entire cluster, your Cold Mail Server is a fully sandboxed dedicated container with private delivery queues.

Automatic SPF, DKIM, & DMARC

Our automated system aligns your outbound signatures perfectly. Every email satisfies provider authentication tests automatically.

Integrations

Plugs into any outbound sales tool

Cold Mail Server runs standard SMTP and IMAP protocols. Connect your server to outreach tools including Instantly, Smartlead, Lemlist, Apollo, Clay, or custom scripts in minutes.

Since we charge a flat fee of $49/mo instead of billing per mailbox, you can create hundreds of mailboxes across multiple domains, connect them in bulk to your campaign tools, and scale without seat constraints.

app.coldmailserver.com
SMTP Serversmtp.coldmailserver.com
Port587 (TLS)
SMTP Usernamesender@yourdomain.com
SMTP Password••••••••••••••••
IMAP Serverimap.coldmailserver.com
Port993 (SSL)
Outreach Tool SMTP Integration Setup

Pre-Warmed Email Server FAQs

What is a pre-warmed email server?

It is a dedicated SMTP server cluster whose outgoing IP addresses have been aged and warmed up. Routing emails through pre-warmed IPs helps you maintain high inbox placement because providers already recognize the server as a high-quality sending source.

Do I share the server or IPs with other senders?

No. Every Cold Mail Server instance is deployed as an isolated virtual container with dedicated IP resources. Your sending history and reputation are entirely independent.

Does the server support automated IP rotation?

Yes. Our Scale and Agency plans support automated IP rotation across pre-aged ranges, allowing high-volume senders to balance outbox throughput across multiple clean IPs.

Are there daily or monthly sending limits?

We set daily capacities depending on the selected plan to keep sending safety aligned (e.g. Starter: 3,000/day, Scale: 10,000/day). You can divide this volume across unlimited mailboxes and domains.

Deploy Dedicated Outbound SMTP Infrastructure

Get dedicated outbound IP pool performance, unlimited mailboxes, and automated deliverability diagnostics from $49/mo.

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