

For a thorough understanding of what each option offers, a simplified comparison table isn't enough to grasp all intricacies that come with each tool, so let's dive deeper into what makes Zapmail and Mailforge unique.
When you evaluate a cold email infrastructure platform, the foundational architecture matters because it determines deliverability behavior, how you scale campaigns, and what kinds of email accounts and workspace setups are possible.
Zapmail offers a pre-warmed mailbox option, automated DNS setup, and one domain per workspace with admin access, which can appeal to teams that want official provider mailboxes and OAuth-based connections.
Mailforge frames itself as a deliverability-first infrastructure for cold email: automated DNS, multiple workspaces, unlimited mailboxes at a very low cost, and workflow guidance for how many domains and mailboxes you need to avoid deliverability issues.
Mailforge provides flexible, usage-based pricing for shared IP email infrastructure (you buy domains + mailbox slots). A handy on-page calculator estimates your exact costs. Annual billing for mailboxes gives 2 months free.
Add-ons & extras
Zapmail offers tiered subscription bundles for Google & Microsoft mailboxes (you buy plans that include a set number of mailboxes + add-on mailboxes). Discounts with quarterly and yearly billing.
Scalability isn’t just adding mailboxes - it’s how you provision domains, update DNS records at scale, and maintain inbox health while campaigns multiply.
Mailforge's approach lets outbound teams spread volume across many domains and avoid the single-point-of-failure risk of concentrating sends on a few high-profile mailboxes.
Speed of onboarding affects time-to-first-campaign and how quickly you can iterate.
The option of pre-warmed Google Workspace & Microsoft 365 mailboxes (for an additional price) and instant OAuth connections means Zapmail customers can often connect inboxes and outreach tools with minimal manual DNS steps, and skip the warm-up portion of setting up mailboxes.
Mailforge explicitly takes care of DKIM, SPF, DMARC and custom domain tracking in accordance with best practices. Additionally, you can update multiple domains’ DNS records in just a few clicks.
Mailforge mailboxes are ready in just 5 mins with automated DNS set up, and a guided in-app flow that helps calculate how many domains and mailboxes you actually need to process contacts without causing deliverability or bloat issues.
Domain setup and DNS configuration are where deliverability battles are won or lost.
The platform documents automated DNS configuration, and domain & workspace segregation (1 domain per workspace) that provides isolation and easier troubleshooting.
Mailforge also supports domain transferring (you can add or move domains between apps as needed) and provides a calculator to estimate how many domains and mailboxes you need to spread volume and avoid deliverability issues.
That combination of bulk DNS management, automated DNS and in-app domain transferring reduces the time and human error associated with domain setup at scale.
Email deliverability is the single metric that determines whether your cold outreach reaches prospects’ inboxes or disappears in spam folders.
Those are effective tactics when your strategy relies on mainstream provider accounts and you need immediate inbox placement for early campaigns.
Mailforge provides tools (inbox placement tests, the email deliverability center Warmforge, etc.) to measure and improve outcomes.
It's important to also highlight the importance of spreading volume across many domains, mailboxes, and even different types of infrastructures to reduce the chances of deliverability issues that stem from concentrated sending.
Salesforge uniquely bundles alternative infrastructure choices into a single stack:
That product architecture means a single vendor can support multiple outbound campaigns and use-cases - from teams that want to manage multiple domains and multiple accounts cheaply, to heavy hitters who need dedicated IP provisioning or fine-grained control.
For buyers weighing long-term lead generation and cold email outreach, this matters.
Having integrated alternatives (ESP-matched mailboxes + shared infra + private infra) inside one suite preserves CRM integration, feedback loops, and the ability to run deliverability tests and reputation monitoring under the same platform umbrella.
This saves time, reduces manual DNS setup and plan friction when adding new domains or new users, and helps maintain stable sender reputation as your sending volume scales.
Customer support models differ a lot between providers and that difference matters for adoption, troubleshooting deliverability, and long-term campaign health.
Zapmail provides self-help resources (docs, DNS/check tools, FAQ) and direct contact through its site, with email/support channels and API documentation for technical integrations. Higher paid tiers include priority support and the site centers on ticket/email help and knowledge-base resources rather than public Slack or 24/7 chat claims.
Mailforge advertises consultative services and add-ons - such as expert sessions to diagnose outreach challenges - along with deliverability resources and onboarding that reduces setup time
Besides that, Mailforge also offers:
In practice that means fewer technical steps for your team, less manual work mapping records across registrars, and fewer hours spent troubleshooting or waiting for a response.
If you need official Google Workspace mailboxes, workspace-level isolation, and immediate OAuth connections - Zapmail is a logical fit.
Zapmail explicitly lists Gmail and Outlook mailboxes with an optional pre-warmed mailbox option for extra cost. Their plan structure maps to mid-size agencies, and agencies with multiple clients.
But if your strategy is to scale campaigns by spreading volume across many domains and mailboxes, minimize per-mailbox costs, and rely on automated DNS setup, bulk DNS updates, and a deliverability-first distributed infrastructure - Mailforge is the better match.
Mailforge’s shared IP set up, free automated setup of DKIM/SPF/DMARC, bulk domain management, and multiple workspaces simplify domain setup and mailbox setup at scale, making it easier for teams of all sizes to scale campaigns quickly and affordably.
Mailforge is a cold email infrastructure platform built for deliverability-first, shared-IP sending and automated domain registration. Unlike Zapmail (Zapmail starts from a marketplace/OAuth Google Workspace mailboxes model), Mailforge emphasizes low-cost scale, bulk DNS automation and workflow guidance. It supports Google Workspace accounts and Microsoft accounts integrations for outbound teams and solo senders while focusing on reliable inbox placement rather than reseller shortcuts.
Mailforge automates domain registration/DNS and configures email protocols (SPF/DKIM/DMARC) instantly for new domains, includes warm-up guidance and tools to spread volume across mailboxes. That automation plus inbox rotation and deliverability tooling reduces configuration mistakes that lead to spam. It’s built to get campaigns fast into the primary inbox while integrating with popular cold email tools and various tools for testing.
Mailforge provides workspace-level admin flows that let outbound teams and agencies provision additional mailboxes, allow users to manage mailboxes, and retain practical admin access for domain and DNS changes. While Google Workspace mailboxes may require provider admin steps, Mailforge’s UI and APIs give full admin control where possible - super helpful for scaling campaigns and managing many Google Workspace accounts or Microsoft accounts.
Yes - Mailforge scales from solo senders to mid-size agencies, supports adding additional mailboxes cheaply, and connects with popular cold email tools and various tools via integrations. Its shared infrastructure and automated setup make campaign rollouts fast. If you prefer pre-warmed Google Workspace mailboxes or strict OAuth flows, Zapmail’s model might suit you; Mailforge prioritizes automation, deliverability and affordable scale to avoid spam and operational friction.