Growth · alternatives · 2026

24 alternatives to Primeforge

Google & Microsoft mailboxes for cold email

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Mailforge▲627

   Cold email infrastructure sorted in minutes

   2024 · mailforge.ai · its alternatives →

2. 2
   Email Warmup by Boxward▲144

   Get more cold emails opened, get more sales, automatically

   2022 · boxward.com · its alternatives →

3. 3
   Deliveryman.ai▲186

   Cold email infrastructure on autopilot without Gsuite

   Jun 2026 · deliveryman.ai · its alternatives →

4. 4
   Cold Email Warmup by GMass▲98

   A completely free cold email warm-up system

   2021 · gmass.co · its alternatives →

5. 5
   Warmy.io▲417

   Boost your email deliverability with an AI driven algorithm

   2024 · warmy.io · its alternatives →

6. 6
   Mailgo▲469

   AI-powered cold email platform that boosts deliverability

   2025 · mailgo.ai · its alternatives →

7. 7
   MassInbox▲168

   Mass cold email subscriptions for agencies and startups

   2023 · its alternatives →

8. 8
   Mailerr▲119

   Automated Infrastructure for boosting Cold Email Delivery

   2025 · mailerr.co · its alternatives →

9. 9
   Warmy.io▲194

   Auto all-in-one tool to make your email channel reliable

   2022 · warmy.io · its alternatives →

10. 10
    ColdScribe▲172

    An AI tool for generating personalized cold emails

    2024 · coldscribe.com · its alternatives →

11. 11
    AtMailWin▲82

    Winning cold mailing campaigns

    2023 · its alternatives →

12. 12
    Autoklose 2.0▲124

    Cold email reimagined 💌

    2020 · app.autoklose.com · its alternatives →

13. 13
    Cold Email▲93

    First person cold email sending simulator

    2016 · craterhouse.itch.io · its alternatives →

14. 14
    Cold Mail▲68

    ​Transform cold outreach into warm conversations

    2023 · its alternatives →

15. 15
    Pigeon Mail▲126

    Send hundreds of personalised emails from Gmail

    2021 · pigeonmail.co · its alternatives →

16. 16
    Closers HQ▲83

    Send unlimited cold emails from unlimited mailboxes

    2023 · ditlead.com · its alternatives →

17. 17
    IceInbox▲11

    Tool to send personalized cold emails for email marketing

    2025 · iceinbox.vercel.app · its alternatives →

18. 18
    Smtpfox - Mailboxes for Cold Outreach▲4

    Cold email infrastructure that doesn't cut corners.

    Jan 2026 · smtpfox.ai · its alternatives →

19. 19
    Chief of Cold▲10

    Your Instantly.ai cold email system set up and managed.

    2024 · its alternatives →

20. 20
    LiteMail▲1

    Fresh & Pre-Warmed Google & Microsoft Inboxes

    Mar 2026 · litemail.ai · its alternatives →

21. 21
    Pribox.io▲5

    Reach more customer, Get more sales!

    2022 · gocustomer.ai · its alternatives →

22. 22
    Cloudflare Email Routing▲14

    Straightforward email for everyone.

    2021 · cloudflare.com · its alternatives →

23. 23
    MailOptimal▲9

    Get all your emails delivered to Inboxes

    2024 · mailoptimal.com · its alternatives →

24. 24
    ScaledMail▲14

    Affordable cold email infrastructure for outreach

    2025 · scaledmail.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →