Alternatives

Products that do what Sentroy does

Mail, storage, auth, env secrets in one SDK

1. 1
   TransferChain Send▲591

   Blockchain-based secure & private file sharing for everyone

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2. 2
   Sentry▲265

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3. 3
   Telebugs▲391

   Lightweight, self-hosted Sentry alternative

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4. 4
   Beeble▲314

   The safest platform to exchange emails and store files

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5. 5PS
   Posthorn, self-hosted mail gateway▲83

   Introducing Posthorn, a self hosted email gateway. One docker container (or Go binary) between every self hosted app on your VPS and your transactional email provider. Set up Posthorn once, point your apps to it, done. I was trying to deploy Ghost on a DigitalOcean droplet and found that DO and many different VPS services have started to block the default SMTP ports to try to combat the various types of abuse they get. To actually configure my app, I had to hack together a Postfix relay. In another project, I had a static site which had a contact form, but my free Formspree account was…

   May 2026 · github.com

6. 6
   Hookdeck Outpost▲115

   Open-source outbound webhooks for your platform

   Apr 2026 · hookdeck.com

7. 7
   Sendy▲80

   Self-hosted email service provider (ESP)

   2014

8. 8
   Mailazy▲203

   Cloud email infrastructure for the internet

   2022

9. 9
   Just Mail▲64

   Secured email platform based on distributed storage network

   2014

10. 10
    Sendspark▲140

    Send a video, spark a conversation

    2019

11. 11
    SendDock▲2

    Self-hosted email marketing. BYO SMTP, zero cost per email.

    May 2026 · senddock.dev

12. 12
    Mailcheap▲123

    Email hosting, dedicated email servers, API-first platform

    2018

13. 13
    Sendra▲104

    Design emails in Figma, export HTML that works everywhere

    11d ago · hellosendra.com

14. 14
    Email SDK▲25

    One email SDK for every provider

    Jun 2026 · email-sdk.dev

15. 15
    SendgoMail▲88

    Email sending made easy & affordable for free

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16. 16
    Drivebase▲98

    Unified file manager for all your cloud storage with E2EE

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17. 17
    MailDog▲2

    Launch Faster. Deliver Better.

    Jul 2026 · maildog.io

18. 18
    MailTock▲106

    Never lose money to a missed email again

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19. 19
    MailDeck▲2

    Reliable cold email infrastructure for high-volume senders

    Mar 2026 · maildeck.co

20. 20
    SuperSend 3.0▲94

    Sequences, infrastructure, deliverability. One product.

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21. 21SA
    SendToMyCloud – A Public Inbox for Your Dropbox and Google Drive▲22

    2015 · sendtomycloud.com

22. 22
    Postal.io for HubSpot▲81

    Send handwritten notes, gifts, or direct mail in minutes

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23. 23VE
    Versatile email infrastructure on AWS serverless▲29

    It's a self-hosted mailbox for all emails coming to your own domains, with Web interface and CLI included. Notes: - all emails share the same inbox, as long as set your DNS correctly - Web client via self-hosted Docker or Cloudflare Pages - need additional access controls, may use Basic Auth or Forward Auth with Cloudflare deployment

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24. 24
    Phalanx SendTurtle▲27

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