Alternatives

Products that do what Send Unlimited Cold Emails for free does

100% Free cold email platform. Connect any mailbox.

1. 1
   .meteoremails▲107

   Send cold emails for free! Free and open source project

   2020

2. 2
   lemlist 2.0▲617

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3. 3
   MassInbox▲168

   Mass cold email subscriptions for agencies and startups

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4. 4
   lemlist▲419

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5. 5
   Cold Email Warmup by GMass▲98

   A completely free cold email warm-up system

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6. 6
   Cold Mail Server▲12

   Managed email infrastructure for your cold outreach

   Jul 2026 · coldmailserver.com

7. 7
   Emelia▲236

   The simplest and most affordable cold mailing solution

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8. 8
   Temp Mail▲205

   Free, easy to use and reliable temporary email address

   2021

9. 9
   SendMail▲104

   Send free anonymous email online

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10. 10
    1SecMail▲112

    Instant temporary email

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11. 11
    Znaplink Emails▲102

    Send unlimited emails to your community

    2022

12. 12
    Free & OSS SMTP Bulk Cold Email Sending▲3

    cold0 - bring your own SMTP cold email sending and managing

    Feb 2026 · cold0-gamma.vercel.app

13. 13
    Thunder Mail▲87

    Cheap and simple transactional emails API with Amazon SES

    2018

14. 14
    InboxFee▲79

    Make strangers pay for their cold emails

    2020

15. 15
    Groupmail Free▲78

    Free newsletter app for Mac, Windows & Linux

    2022

16. 16
    Mailbird▲3

    Your own email service. Unlimited emails. Unlimited domains.

    Apr 2026

17. 17
    Grab Digital▲76

    Unlimited branded, ready-to-send emails at $499 per month

    2020

18. 18
    Cold Email Outreach Machine▲2

    Automate cold outreach in one day using only free tools

    Jun 2026 · oliverthulin.gumroad.com

19. 19BA
    Built an email marketing platform after paying $230/month▲44

    Spent the last month building Fertit - basically a newsletter manager but you bring your own SMTP and skip the DevOps nightmare. All the features (subscriber management, admin dashboard, custom preferences) without the infrastructure markup. The math that broke me: Mailchimp: $230/month for 15k contacts My solution: $10/month infrastructure + $10 SendGrid = unlimited What I learned: The "enterprise" features are mostly database operations with SMTP APIs. But the 3 weeks of Go/PostgreSQL/Redis setup explains why people just pay ConvertKit $300/month. Here's the thing:…

    2025 · fertit.com

20. 20
    Live Direct Marketing▲2

    B2B cold email infra. Pay only for inbox.

    May 2026 · live-direct-marketing.online

21. 21IM
    InboxFee – make strangers pay for their cold emails▲28

    2020 · inboxfee.com

22. 22
    EasyTrashMail▲7

    Free temporary email address | disposable email

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23. 23
    Lightreach (Free Outreach Emails)▲3

    Instantly alternative — self-hosted cold email, free

    Jul 2026 · github.com

24. 24FD
    Free Disposable Temporary Email Service▲6

    2019 · rainmail.xyz

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