Ferramentas gratuitas de capacidade de entrega de e-mail
InboxAlly's free email deliverability tools are a suite of five diagnostic utilities — including a spam checker, content tester, blocklist lookup, list verifier, and warmup planner — that identify issues with your email before you send. Every tool is free, works with any sending platform, and requires no account.
Free Email Deliverability Tools
Email Spam Checker
Test your email for spam triggers, authentication issues, and content problems before you send. Get a detailed score and actionable fixes.
- SPF, DKIM, DMARC verification
- Content & link analysis
- Sender reputation check
- Detailed spam score report
Testador de conteúdo de e-mail
Scan your email for spam trigger words and optimize your subject line before sending. Identifies risky phrases and scores your content.
- Spam word detection
- Subject line scoring
- HTML content analysis
- Link validation
Pesquisa no banco de dados de spam
Check if your IP address or domain is on any email blocklist. Scans 50+ major blocklist databases and shows your status in real time.
- IP & domain blocklist check
- 50+ databases scanned
- Real-time status report
- Delisting guidance
Verificação da lista de e-mails
Verify and clean your email list to reduce bounces and protect your sender reputation. Identifies invalid, risky, and disposable addresses.
- Invalid address detection
- Disposable email filtering
- Spam trap identification
- Bounce risk assessment
Planejador de aquecimento
Get a custom email warmup schedule for your sending domain. Calculates the right daily volume ramp-up based on your current reputation and goals.
- Custom warmup schedule
- Daily volume ramp-up
- Reputation-based recommendations
- Goal-based planning
Learn more about the deliverability fundamentals these tools test: how spam filters work, sender reputation, inbox placement, list hygiene, and email authentication setup.
Why Are These Tools Free?
InboxAlly's free tools help you diagnose deliverability issues. Our platform fixes them — by teaching email providers to put your messages in the inbox through real engagement signals. Start with the free tools. When you're ready to actively repair and optimize your deliverability, explore InboxAlly's plans.
Perguntas frequentes
Are these tools really free?
Yes — all five tools are 100% free with no usage limits. No credit card, no account, no trial period. They are free because they help you diagnose deliverability issues, and InboxAlly's paid platform is what actively fixes them.
Do I need to create an account to use the tools?
No. Every tool works instantly without signup or login. Just visit the tool page and start using it.
Can I use these tools with any email platform?
Yes — the tools work with any email sending platform including MailChimp, SendGrid, HubSpot, custom SMTP setups, and any other ESP. For tools like the Spam Checker, you send from your actual platform so authentication checks reflect your real infrastructure.
What is the difference between the Email Spam Checker and the Email Content Tester?
The Spam Checker tests your full email delivery path — including SPF, DKIM, DMARC authentication, sender reputation, HTML validation, and content. You send a real email to a test address. The Content Tester focuses specifically on scanning your email copy for spam trigger words and scoring your subject line — you paste text directly, no sending required.
How do these free tools improve my email deliverability?
They identify the specific issues causing your emails to land in spam — before you send to your list. By fixing authentication gaps, removing risky content, cleaning your list, and checking blocklists proactively, you prevent deliverability problems rather than reacting to them after the damage is done.
What if the tools find problems I can't fix on my own?
InboxAlly's platform goes beyond diagnosis. It teaches email providers to prioritize your messages through real engagement signals — actively repairing your sender reputation and inbox placement. You can explore plans at any time, and our support team can help you interpret your results.
Confiado por equipes de capacidade de entrega, agências e ESPs desde 2020