Alternatives

Products that do what Spam Check does

A free JSON API to check your email messages' spam scores

1
Email Validator!▲193
Free JSON API that gives you a simple way to validate emails
2015
2
Unspam.email▲309
Email spam checker and newsletter heatmap prediction.
2020
3
Email Spam Checker by Autoklose▲105
Send spam-free, high-converting emails
2020
4
analyze.email▲136
Test the spam-y-ness of your emails
2017
5
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023
6
Mail Tester▲307
Test the spamminess of your email
2016
7
Clearbit's Risk API▲189
Identify spam signups & bad actors
2017
8
Grade My Email▲145
Helps you get out of the spam folder.
2020
9
Front API▲298
Browse all emails, SMSs, chat, tweets to & from your company
2016
10FE
Free Email end-to-end testing API▲7
2017 · emaile2e.com
11
Free Email Finder & Verifier▲69
Find quality emails from a domain and verify their validity
2022
12
SellScale Email Grader▲117
Get instant feedback on your sales emails
2024
13
Email Bounce Checker from BlockSurvey▲98
Privacy-focused email bounce checker. No ads, no trackers.
2022
14EF
EmailRep, free API to query email reputation and report bad senders▲8
2019 · blog.sublimesecurity.com
15GJ
Gmail.js – JavaScript API for Gmail▲212
2013 · github.com
16
Vetter▲134
Test if your emails will be spammed, using real accounts.
2020
17
Mailparser.io 2.0▲298
Extract data from emails. Automate your workflow.
2016
18
Spam-Detecting AI by OpenAI▲73
Spam detection in the physical world
2017
19
JSON Api▲175
Hosted API's to develop your app for free 🙌
2020
20MS
Maildown – Super Simple Email API▲98
2019 · github.com
21
Litmus▲100
Test and track your emails.
2014
22
EmailTest.com▲149
World's easiest spam testing and email rendering service
2017
23
Checker▲124
Detect fake signups in under 200ms with an easy-to-use API
2025
24
Mailtrap.io▲125
Fake SMTP. Send Test Emails without spamming real customers
2014

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