Alternatives

Products that do what inbound guard - firewall for email does

stop threats and spam before they even enter your inbox

1
Inbox Shield by Leave Me Alone▲441
An email screener that works with any email account
2022
2
Inbox Ignite▲85
Prevent your emails from going into spam
2019
3
Burner Mail▲310
Stop giving away your personal information
2018
4
Gblock▲107
Block email tracking in Gmail
2025
5
Bouncer Shield▲85
Real-time form protection against bad emails
2024
6
InboxGuard▲1
Prevent your emails from going to spam before you send
Mar 2026 · inboxguard.me
7
lockrMail▲195
Own the power to organize and protect your email inbox
2021
8
Throttle▲461
Stop giving out your email address
2015
9
EmailShield▲5
Protect your inbox from phishing attacks in 60 seconds!
2025
10
Email Deliverability Booster▲387
Reach every lead, every time
2024
11
Firefox Relay▲252
Hide your real email address to help protect your identity.
2021
12
inbound ▲227
An email platform for builders
2025
13
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023
14
Gmail Email Guard▲8
Enterprise-grade phishing protection, no IT team required.
5d ago · cybercheck360.com
15
ProxiedMail▲170
Email forwarding with unlimited mailboxes
2024
16
Mailpanion▲74
Know when your emails are opened & block dangerous trackers.
2019
17
Radr▲139
A paywall for your email
2021
18
Warmup Your Email▲153
Always land in Inbox by establishing sender reputation
2021
19
Outboundly.ai▲190
AI-powered cold outreach platform
2023
20
Danger▲119
Catch fake details, block throwaway emails, spot problem IPs
2024
21
MailDude▲92
Stop spam in your inbox - send it to MailDude
2014
22
GlockApps▲98
Test where your email will appear: Inbox or Spam
2015
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
EmailsGuard▲2
Protect Your Inbox from Email Threats.
Feb 2026 · emailsguard.com

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