Alternatives

Products that do what Sendox does

Generate professional email replies in seconds

1. 1
   Email Warm-Up Tool by Reply▲325

   Make sure your emails land in the inbox, not spam

   2021

2. 2
   Revo AI Email Assistant▲342

   AI with accurate replies that tackle the next-step tasks

   Feb 2026 · revo.ai

3. 3
   AI Sales Email Assistant by Reply▲342

   Generate human-like emails and follow-ups with GPT-3

   2021

4. 4
   MailTester.AI▲328

   Forward an email and get an AI deliverability report in 30s

   Oct 2025

5. 5
   Mocke▲539

   Mock email campaigns: know your reply rate without launching

   2025

6. 6
   EzMail.AI▲115

   Reply to emails 10X faster with pre-filled drafts by AI

   2023

7. 7
   Growbots Email Timing Optimizer▲431

   Find the perfect time to send your email

   2017

8. 8
   MailMoo▲292

   AI personalized video for cold outreach that works

   2025

9. 9
   SmartWriter▲245

   Scale with AI-personalised cold emails

   2021

10. 10
    HowToReplyTo.com▲184

    AI-powered replies for every message

    2022

11. 11
    ComposeMate: AI Email Writing Sidekick▲154

    Write emails like a pro in seconds from inbox directly

    2023

12. 12
    Warmer.ai▲212

    Generate personalized emails in seconds, written by AI

    2021

13. 13
    Mailr - AI Email Writer▲133

    Write and reply to emails using ChatGPT

    2023

14. 14
    Free AI Email Assistant▲121

    Forward, add context, generate 👉 no more boring replies

    2024

15. 15
    ReplyMate ▲13

    Stop overthinking emails — write replies in seconds

    Apr 2026 · replymateai.app

16. 16
    superReply▲119

    No more typing, no more stress - let AI handle your emails

    2023

17. 17
    Delos Mail▲79

    Delos AI drafts your replies and organizes your emails

    Jan 2026 · delos.so

18. 18
    EzReply - AI That Sounds Like You▲34

    1-Click Perfect Replies/DMs in Seconds

    2025

19. 19
    Make senders work to get into your inbox▲44

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com

20. 20
    MailoReply▲13

    Reply & write emails 10× faster

    Oct 2025

21. 21
    ProReach - Outreach Emails in Seconds▲2

    AI cold emails, follow-ups & quote replies in 60s

    Aug 2026 · getproreach.com

22. 22
    Sendlyio▲14

    Cold email that actually replies

    Jun 2026 · sendlyio.com

23. 23
    Replyy▲9

    Reply faster. Reply safer.

    Jul 2026 · replyy-production.up.railway.app

24. 24
    Mailen▲6

    Mailing, Simplified

    Nov 2025

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