Detailed campaign deliverability analysis
Test your emails before you hit send to identify deliverability red flags. Protect sender reputation and avoid the spam folder by finding HTML errors, spam-like content, broken links and more.
Reliable email list verification tool & API
Check your list for invalid email addresses that could impact deliverability and land you on an email blocklist. Upload your entire list or use the API to validate each email entered on your website or app in real time.
Advanced inbox placement testing
Predict the email deliverability of your campaigns for 7 major mailbox providers including Gmail, Yahoo, Outlook, AOL and more. Learn if your emails will go to the inbox, spam, or Gmail Promotions tab.
Effective blocklist monitoring
Receive real-time notifications when you are detected on an email blocklist, along with direct links and instructions to get delisted. Monitor the most impactful blocklists to keep your IP or domain better protected.
Straightforward DMARC reporting
Track domain usage to identify sending sources and troubleshoot issues. Protect your domain from unauthorized use, monitor email authentication, and get recommendations on how to resolve SPF and DKIM failures.
SPF & DKIM checks
Correctly configure your DNS records and use Email Insights and DMARC reporting to monitor and check their validity. Learn of SPF and DKIM failures immediately so you can fix them and protect your deliverability.
Modern, user-friendly interface
The intuitive dashboard and navigation menu make it easy to find the tools and reports you need. Plus, find quick access to integrations, API tokens, account settings and billing information without needing to dig.
Why is MailerCheck the best MXToolbox alternative?
Backed by deliverability experts
With 12+ years of experience in marketing and transactional email delivery, we know what it takes to achieve great deliverability.
24/7 customer support
Whether you need help getting started or are having trouble with a feature, our friendly and knowledgeable customer support team is just a click away!
Comprehensive API documentation
Effortlessly integrate MailerCheck with your app or website using the straightforward and regularly-updated API documentation.
What MailerCheck users think
Join 144,093 happy customers worldwide who are already using MailerCheck.
I handed an intern the initial creation, setup and use of the MailerCheck account and it was a breeze. The setup went smoothly and it only took a couple of hours to do everything until running the email verification.
Integrations
Our email verification solution is integrated with multiple email platforms. Integrate our email verifier to ensure a clean subscriber list before you hit send.
How do our features compare with MXToolbox?
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| Email List Verification | ||
| Single email verification | ||
| Bulk email verification | ||
| Real-time API verification | ||
| Invalid email detection | ||
| Catch-all email detection | ||
| Disposable email detection | ||
| Syntax error detection | ||
| Mailbox full detection | ||
| Role based emails detection | ||
| Past delivery errors detection | ||
| Typo detection | ||
| Mailbox blocked detection | ||
| Blocklist Monitoring | ||
| IP address monitor | ||
| Domain monitor | ||
| Email alerts | ||
| Webhook alerts | ||
| Delisting button | ||
| Delisting instructions | ||
| DMARC Reports | ||
| DMARC generator | ||
| Instant alerts | ||
| DMARC recommendations | ||
| Reports | ||
| Mail source monitoring | ||
| Email message volume | Unlimited | 500k |
| Inbox Insights | ||
| SPF Validation | ||
| DKIM Validation | ||
| IP Blocklist check | ||
| Spam filter check | ||
| Email HTML check | ||
| Email links check | ||
| Email images check | ||
| Spam content check | ||
| Inbox Placement | ||
| Gmail (Inbox, Spam, Promotion) | ||
| Gmail Promotions tab | ||
| Yahoo | ||
| Aol. | ||
| Zoho | ||
| Outlook | ||
| GMX | ||
| ProtonMail | ||
| Mail.com |
FAQs
What does MXToolbox do?
MXToolbox is an email deliverability tool that monitors and checks the technical configurations of mail servers to improve deliverability and email security. It does not, however, have tools to analyze email campaign content for deliverability issues or verify email addresses.
What is the best alternative to MXToolbox?
The best alternative to MXToolbox is MailerCheck. MailerCheck is the more affordable solution that includes additional features, such as email content analysis and email verification, for an all-in-one email deliverability solution.
Is MXToolbox free?
MXToolbox has a free plan which offers blocklist monitoring for 1 domain.
What is MailerCheck?
MailerCheck is a B2B SaaS solution that enables email senders to optimize every facet of their email delivery with tools to analyze technical configuration, email campaign content, domain activity, blocklist activity, and perform email list verification.
Ready to use a more flexible, comprehensive deliverability optimization tool?
Sign up to MailerCheck for free and get 200 free credits to start off with plus access to email marketing optimization tools such as Email Insights and Inbox Placement.
Ready for better email deliverability?
Sign up to MailerCheck for free and get 200 free credits to start off with plus access to email verification testing and our real-time email validation API.