Growth · alternatives · 2026

24 alternatives to Unspam.email

Email spam checker and newsletter heatmap prediction.

Unspam.email is an online tool that analyzes emails to check spam likelihood and predict deliverability. It scans email content and characteristics, providing a spam score and generating a heat map showing how… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Unspam.email launched in 2020; newer entries below may have overtaken it.

1
Unspam AI▲385
See how your subscribers read your emails with our AI inbox
2024 · unspam.email · its alternatives →
2
You've Got Spam▲305
A new tool that lets you spam back the spammer
2020 · youvegotspam.mschfmag.com · its alternatives →
3
Mail Tester▲309
Test the spamminess of your email
2016 · mail-tester.com · its alternatives →
4
Mailwarm 2.0▲676
The email warmup tool, upgraded for deliverability.
Jun 2026 · mailwarm.com · its alternatives →
5
mailX by mailwarm▲596
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com · its alternatives →
6
Unspam.io▲9
Free up your inbox from unsolicited cold emails
2024 · its alternatives →
7
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023 · warmupinbox.com · its alternatives →
8
Email Spam Checker by Autoklose▲105
Send spam-free, high-converting emails
2020 · app.autoklose.com · its alternatives →
9
Inbox Zero▲821
Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.
2023 · getinboxzero.com · its alternatives →
10
Gmail Unsubscriber▲559
Open source alternative to Unroll.me for Gmail
2017 · github.com · its alternatives →
11
Spam Checker by Mailmeteor▲88
Detect and remove spam words in your emails
2022 · mailmeteor.com · its alternatives →
12
MailTester.AI▲327
Forward an email and get an AI deliverability report in 30s
2025 · mailtester.ai · its alternatives →
13
Mocke▲519
Mock email campaigns: know your reply rate without launching
2025 · mocke.co · its alternatives →
14
Warmbox▲383
Warm-up your inbox and never land in spam
2021 · warmbox.ai · its alternatives →
15
Lukewarm Emailer▲267
Build a list of people on Twitter, reach out w/ a cold email
2014 · its alternatives →
16
Mailook▲309
Identify & fix your email deliverability issues for free
2021 · mailook.ai · its alternatives →
17
Email List Verify▲330
Remove hard bounces and email traps from your email lists
2016 · emaillistverify.com · its alternatives →
18
Straight2Spam – Send your email right to someone's spam folder▲318
Wanna send an email straight to someones spam
2020 · straight2spam.com · its alternatives →
19
Email Testing By Inbox Pirates▲355
Preview, analyze & test emails with one click
2022 · inboxpirates.com · its alternatives →
20
MailDump▲270
Find, extract and verify emails automatically
2018 · maildump.co · its alternatives →
21
Cold Email Analyzer by Mailshake▲222
Real-time analysis of email subject lines and copy
2018 · mailshake.com · its alternatives →
22
Revealer by Etools▲252
Uncover email addresses behind any domain
2017 · its alternatives →
23
Email Newsletter Checklist by MailSwift▲180
Send error free emails that your customers will love
2018 · oasiscity.io · its alternatives →
24
Grade My Email▲145
Helps you get out of the spam folder.
2020 · grademyemail.co · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →