Primeforge
Alternative & Review

PrimeForge.ai is the premium infrastructure tier within the "Forge Stack" ecosystem. Unlike Mailforge (which uses shared SMTP), PrimeForge provisions legitimate Google Workspace and Microsoft 365 mailboxes on US-based IPs. According to their website (primeforge.ai), they cater to sales teams, agencies, and AI SDR workflows, offering automated DNS setup and pre-warmed mailboxes that are ready to send in 30 minutes.

G2: 4.4/5 (11 reviews)
Trustpilot: 3.9/5 (8 reviews)

Real user experiences from Reddit communities (r/coldemail, r/SaaS) show a generally positive to neutral reception for PrimeForge. The founder is active in these communities, which builds trust. Users recommend PrimeForge as a "good reseller of Google Workspace" and appreciate the deliverability boost that comes from using native Google/Microsoft infrastructure. Here are some representative posts:

Mailforge VS Primeforge: "Yep just smtp (mailforge) vs google/outlook (primeforge). The first thing I would consider is what industry you're sending to."

Are Instantly DFY emails a scam?: "Try Primeforge.ai They are good reseller of Google Workspace. And also you can checkout ScaledMail."

🟢 Native infrastructure: Real Google Workspace and MS365 accounts match ESPs, improving deliverability.
🟢 US-based IPs: Clean, geographically favorable IPs target US prospects effectively.
🟢 API access: Full API access lets teams automate provisioning.

🔴 High pricing: At $3.5 to $4.5 per mailbox, scaling becomes expensive.
🔴 No automated recovery: Lacks self-healing mailboxes to handle burned accounts.
🔴 Limited flexibility: No SMTP option with IP rotation to diversify sending.

Maildoso isn’t a complex management suite or a sequence builder – we know that real outreach needs a rock-solid foundation. We understand how the inbox works way better than those "all-in-one" platforms. From our self-healing mailbox rotation to automated email deliverability infrastructure checks, we do all the technical "dirty work" for you, so you can stop worrying about the tech and get back to closing deals.

We provide high-authority mailboxes designed to stay healthy for months, not weeks, allowing your outreach team to focus on the 1% of deals that matter rather than the 99% of tech that usually breaks. It’s a specialized environment for agencies looking for a reliable SMTP mailbox for agencies that have graduated from generalist tools.

G2: 4.7/5 (181 reviews)

"Tried it mainly because of the good price, but ended up sticking with it since deliverability’s been pretty stable so fa" – Thinking about trying "Maildoso". Has anyone here used it? Is it actually better than other tools?

"I tested a small batch first and results were comparable to our Google setup. Ended up moving more campaigns there because of the lower cost. That's a good strategy, buy small package and compare with your current setup – I want to try Maildoso. What do you guys think about it?)"

🟢 Dynamic IP Rotation: We rotate your IP addresses in real-time – if an IP gets flagged or blacklisted, we instantly swap it for a clean one before your campaign takes a hit, ensuring your emails consistently land in the primary inbox rather than getting stuck in spam.
🟢 Self-Healing Rotation System: An automated resting period for mailboxes every two weeks that clears provider flags and recovers reputation on autopilot.
🟢 Global Customer Domain Tracking: Proprietary technology that allows you to safely include links without compromising your sender reputation.
🟢 Automated Inbox Placement Tests: Free email deliverability infrastructure testing every three days for all mailboxes, giving you real-time visibility into your health.

🔴 Conservative Limits: We suggest sticking to 15 emails a day per box to keep your domains healthy for the long run. You are free to send more if you choose, but be aware that aggressive "blasting" is a fast track to burning your reputation.
🔴 Google/SMTP Focus: We do not support Microsoft 365/Outlook/Azure environments at this time.
🔴 Lack of built-in warmup. We do not have an integrated warm-up yet, but we are currently working on it.

When you evaluate cold email providers, you have to look at the underlying technology. A few years ago, you could buy basic Google Workspace accounts, warm them up, and send thousands of emails. You cannot do that anymore. Google and Microsoft use AI to track sending patterns. If your infrastructure relies on static IPs or leaves an obvious footprint, the spam filters will catch you.

This is where Maildoso.ai changes the game. We use intelligent IP rotation. The system constantly shifts the IP address you send from. Spam filters cannot easily tie your domain to a single, burned IP address.

We also use self-healing mailboxes. In a normal setup, if Google flags one of your inboxes, your campaign stops. You have to log in, figure out what went wrong, and fix it manually. Maildoso.ai automates this. The system detects the problem, pauses the bad inbox, runs a recovery protocol, and routes your emails through healthy inboxes. Your campaigns keep running, and you do not lose a day of sending.

Do not choose a provider just because they offer the cheapest inboxes. Cheap infrastructure always costs more in the long run. When your deliverability drops, you pay for it in three ways:

1. You burn expensive leads. Good B2B data costs money. If your emails land in the spam folder, you waste those leads. You pay for contacts who never even see your pitch.
2. You destroy your domains. Once spam filters flag a domain, it is incredibly hard to fix. You usually have to throw the domain away, buy a new one, and start the warm-up process all over again.
3. You lose revenue. Every email that goes to spam is a missed meeting. In B2B sales, missing one connection can cost you thousands of dollars in closed revenue.

You have to treat cold email infrastructure as an investment. Maildoso.ai gives you the technical tools to protect your domains and keep your emails in the primary inbox. It is the only way to scale outbound sales profitably.

PrimeForge.ai works if you need US-based IPs for Microsoft 365 and have a high budget. Their automated setup and API access suit agencies.

However, Maildoso.ai scales efficiently. Maildoso provides Google Workspace accounts for nearly half the price. Maildoso includes self-healing mailboxes to recover burned accounts and SMTP with IP rotation. With a 30-day money-back guarantee and scaling at $1.80 per mailbox, Maildoso.ai delivers better value.