Alternatives

Products that do what Inbox Placement Test does

See where your email really lands — free

1
Email Testing By Inbox Pirates▲358
Preview, analyze & test emails with one click
2022
2
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023
3
Inbox, Spam, or Promotions?▲83
See where your and your competition's emails are landing.
2018
4
MailTester.AI▲328
Forward an email and get an AI deliverability report in 30s
Oct 2025
5
SMTP‑Test.com▲103
One‑click SMTP server test with real‑time protocol logs
2025
6
Mail Tester▲307
Test the spamminess of your email
2016
7
PromoTab▲154
Check on which Gmail tab your email will land
2021
8
GlockApps▲98
Test where your email will appear: Inbox or Spam
2015
9
Dimamo▲85
Email addresses for testing
2022
10
Mailivery▲251
Reach the inbox, not the spam folder
2021
11OS
Open-Sourcing InboxSDK (YC S11) – Build Apps in Gmail▲257
Hi HN! We’re Aleem, Chris, Borys, Meichen and Zach from Streak (YC S11) and today we’re open sourcing our InboxSDK https://www.inboxsdk.com, which makes it easy to build apps for Gmail. Over 1.8B users spend their days in Gmail! Having your app built into the Gmail workflow is a better user experience and gives you great user retention. InboxSDK gives you a high-level, declarative API to insert your UI into Gmail without having to directly manipulate the DOM yourself. End users install a browser extension to use your app. The SDK can add UI to multiple areas of Gmail. For example,…
2022
12
MailSlurp▲103
End-to-end email testing made easy
2018
13AF
A fake SMTP server for software integration testing▲127
This is a side project of mine. Use this as your SMTP server in a test environment to guarantee that your users don't receive test emails. Looking for feedback, especially on the security side.
2024 · fakemail.stream
14
Free Email Verifier▲202
The first free and accurate email verification service
2020
15
Email Verifier▲50
Verify your email list before you hit send
Aug 2026 · mailercloud.com
16HI
Hello Inbox – Free email deliverability checklist for marketers▲37
After struggling with low open rates in my small lifestyle software business, I decided to go down the rabbit hole that is email deliverability, learned a bunch of things I didn't know even after being in tech for a decade. A/B tested a bunch of things and finally got good results. I then decided to put together a comprehensive checklist of everything I learned and got me results to share with others. Now I help companies fix poor email deliverability and boost their email ROI. I want this checklist to be a repository of email best practices so I'm always looking to improve and update…
2023 · helloinbox.net
17
SpamRate▲2
Inbox, Spam or Promotions: see where your email lands
Jul 2026 · spamrate.is
18IB
InboxSDK by Streak (YC S11) – Build Apps inside Gmail▲176
2015 · inboxsdk.com
19
Warmup Your Email▲153
Always land in Inbox by establishing sender reputation
2021
20
MailTested▲7
Check why your emails go to spam — instantly.
Nov 2025
21
Send Test Email▲80
A fast and free, online way to send a test email
2022
22
Reply.id▲81
Supercharge your inbox with our AI Gmail filter
2018
23
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
24
MailTest▲7
Most tools say DKIM failed. MailTest tells you why
Apr 2026

Ranked by how close each launch is in meaning, then by votes. Refine with a description →