--- title: mailboxlayer API Reviews meta_title: 'mailboxlayer API Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 11 reviews by the users' company size, role or industry to find out how mailboxlayer API works for a business like yours. aggregate_rating: rating_value: 4.3 review_count: 11 scale: '5' date_modified: '2026-09-23' parent_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- # mailboxlayer API Reviews **Vendor:** Idera, Inc. **Category:** [Email Verification Software](https://www.g2.com/categories/email-verification) **Average Rating:** 4.3/5.0 **Total Reviews:** 11 **AI Enabled:** This product embeds AI to enhance or extend its core functionality. ## About mailboxlayer API Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more. Its system is REST-based, secured by 256-bit HTTPS encryption, and pursuing the goal of assisting developers and businesses in fighting fraudulent users and increasing success rates of email campaigns. ## mailboxlayer API Reviews ### 1. Mailboxlayer API is a great application for validating email addresses. **Rating:** 4.5/5.0 stars **Reviewed by:** AMIT K. | Manager, Small-Business (50 or fewer emp.) **Validated Reviewer:** This review contains authentic analysis and has been reviewed by our team **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** July 13, 2021 **What do you like best about mailboxlayer API?** Mailboxlayer is quite simple to use, and its documentation is useful. If you’re familiar with calling API’s, you shouldn't have issue in using it. It is a good application for identifying spammy and fake email list from the database and helps in removing those list, which finally increases the overall performance of our email marketing campaign. **What do you dislike about mailboxlayer API?** I have had no issues while using Mailboxlayer. It is simple and perfect tool for verifying email list. **Recommendations to others considering mailboxlayer API:** I recommend this application for validating email list to get good ROI of email marketing campaign. **What problems is mailboxlayer API solving and how is that benefiting you?** With the use of this application we can easily identify the fake and spammy email list from the database and it helps in removing those unwanted email list. Which finally helps in increasing the overall efficiency of our mailing campaign. ### 2. Very easy, free email verification **Rating:** 4.5/5.0 stars **Reviewed by:** Mike P. | Director of Digital Strategy, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** July 04, 2021 **What do you like best about mailboxlayer API?** The API is simple to integrate and returns accurate results for my email campaigns. Helps to keep my mail list clean and my bounce rate low. **What do you dislike about mailboxlayer API?** Depending on the size of your list and how fast it grows, you may be facing a big price increase between tiers. Keep in mind that the price is worth it if you need quality email data. **What problems is mailboxlayer API solving and how is that benefiting you?** We have used this to keep our bounce rates successfully low and to maintain a healthy sending status on our Amazon SES account. ### 3. Simple and Easy to use email verification Application **Rating:** 4.5/5.0 stars **Reviewed by:** SEEMA C. | Social Media executive, Small-Business (50 or fewer emp.) **Validated Reviewer:** This review contains authentic analysis and has been reviewed by our team **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** June 21, 2021 **What do you like best about mailboxlayer API?** This application is good for the validation of emails to do perfect email marketing, as it helps in removing unnecessary spammy emails from the list. **What do you dislike about mailboxlayer API?** The pricing of the application is high for a newbie. Otherwise the application is good for email verification. **What problems is mailboxlayer API solving and how is that benefiting you?** All e-mails we now pull are legitimate and usable. We've experienced an 80% reduction in grievances about lacking receipts and orders and dropped our bounces to close zero. ### 4. Its a Very simple as well as efficient tool **Rating:** 4.0/5.0 stars **Reviewed by:** POOJA V. | Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** October 31, 2020 **What do you like best about mailboxlayer API?** The API to utilize is easy and really does what it really you need it to complete with no extras that a lot of other alternatives come with. **What do you dislike about mailboxlayer API?** No dislike as of now mailbox layer is a great tool for verification. **Recommendations to others considering mailboxlayer API:** A good tool for email verification, I suggest the use of this tool **What problems is mailboxlayer API solving and how is that benefiting you?** All email messages we currently pull into our Software are legitimate as well as useful. We've had a good decrease in issues and decreased the bounces to close absolutely no. ### 5. Excellent software for the verification of emails **Rating:** 3.5/5.0 stars **Reviewed by:** JAGDEEP S. | Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** December 06, 2019 **What do you like best about mailboxlayer API?** It's fairly handy to make use of and very essential for all businesses which they can perform along with substantial email lists. This certain software aids us to make sure every single e-mail, in the truly powerful way, bettering the status from the business or maybe the buyer to market our brand name identify The applying is potent and will come with beneficial features that make e-mail validation a breeze. **What do you dislike about mailboxlayer API?** With Mailboxlayer, I've experienced no difficulties. All issues are functioning great for me. **Recommendations to others considering mailboxlayer API:** I recommend this software because it is undoubtedly an excellent tool for validating emails. **What problems is mailboxlayer API solving and how is that benefiting you?** Using the application, verifying emails isn't hard as well as keeping from unsolicited mail. ### 6. Good application for the validation of emails **Rating:** 4.0/5.0 stars **Reviewed by:** SACHIN G. | Digital Marketing Consultant, Mid-Market (51-1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** October 16, 2019 **What do you like best about mailboxlayer API?** It is quite convenient to use and extremely necessary for all companies that they can work together with massive email lists. This specific application helps us to ensure every e-mail, in a really effective way improving the reputation of the company or perhaps customer to promote our brand name The application is powerful and comes with useful functions which makes e-mail validation a breeze. **What do you dislike about mailboxlayer API?** With Mailboxlayer, I have had no challenges. All things are working fine for me. **Recommendations to others considering mailboxlayer API:** I recommend this application as it is an excellent tool for validating emails **What problems is mailboxlayer API solving and how is that benefiting you?** Using the software, verifying e-mails is not difficult as well as keeping away from junk mail. ### 7. Simple and effective **Rating:** 5.0/5.0 stars **Reviewed by:** Callum B. | Portfolio Management -Support Engineer, Financial Services, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** March 27, 2019 **What do you like best about mailboxlayer API?** The API to use it is simple and does what it you need it to do without the frills that most others solutions comes with. Returns just a simple JSON string that you can use how you want. **What do you dislike about mailboxlayer API?** Their pricing plan has some huge jumps meaning if you are between their small and medium plans you could be paying a lot more than what you want to. Outside of this there's nothing really to dislike! **Recommendations to others considering mailboxlayer API:** For no frills, reasonably priced email verifications then mailbox layer is it. Going back to basics is what people need than these bell and whistle systems! **What problems is mailboxlayer API solving and how is that benefiting you?** All emails we now pull into our SAAS system are valid and useable. We have had a 80% reduction in complaints about missing receipts and orders and dropped our bounces to near zero. ### 8. No simplicity **Rating:** 2.0/5.0 stars **Reviewed by:** Verified User in Accounting | Enterprise (> 1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** August 29, 2019 **What do you like best about mailboxlayer API?** The service ultimately does what it’s intended to do. **What do you dislike about mailboxlayer API?** You would think it would be a straightforward email marketing program. Yet important functions such as copying and pasting links, uploading photos, is unreliable as they don’t always reach the customer. **Recommendations to others considering mailboxlayer API:** Look elsewhere, there are better programs out there for reaching target markets **What problems is mailboxlayer API solving and how is that benefiting you?** It has taken up my time as I have needed to resend information over email up to 3 times. ### 9. A Great Tool **Rating:** 5.0/5.0 stars **Reviewed by:** Lilian G. | Marketing Specialist, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** July 24, 2019 **What do you like best about mailboxlayer API?** The tool is powerful and comes with useful features that makes email verification a breeze. **What do you dislike about mailboxlayer API?** With Mailboxlayer, I have had no issues. **Recommendations to others considering mailboxlayer API:** I recommend **What problems is mailboxlayer API solving and how is that benefiting you?** With the tool, verifying emails is easy as well as avoiding spamming. ### 10. Very easy to use **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Higher Education | Enterprise (> 1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** February 10, 2019 **What do you like best about mailboxlayer API?** No ads and easy to navigate around the site **What do you dislike about mailboxlayer API?** Sometimes it’s annoying to get help when I don’t understand how to send out mass emails **Recommendations to others considering mailboxlayer API:** None **What problems is mailboxlayer API solving and how is that benefiting you?** None ### 11. Great tool for mail verification **Rating:** 5.0/5.0 stars **Reviewed by:** Penelope S. | Asistente de marketing, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** August 01, 2018 **What do you like best about mailboxlayer API?** It is free for a little requests, secure, it give us a full verification. **What do you dislike about mailboxlayer API?** it is expensive when you need a determinate of API requests. **Recommendations to others considering mailboxlayer API:** try the free trial **What problems is mailboxlayer API solving and how is that benefiting you?** email verification ## mailboxlayer API Discussions - [What is mailboxlayer API used for?](https://www.g2.com/discussions/what-is-mailboxlayer-api-used-for) - [View mailboxlayer API pricing details and edition comparison](https://www.g2.com/products/mailboxlayer-api/reviews?section=pricing&secure%5Bexpires_at%5D=2026-09-30+11%3A45%3A19+-0500&secure%5Bsession_id%5D=e1b23ef2-5e51-427f-8bc2-327f2f44fe81&secure%5Btoken%5D=0d61e301097187f1c33326709dfee0484aa5b53de3b721410c8aff675e5db6d9&format=llm_user) ## mailboxlayer API Features **Additional Functionality** - Third-Party Integrations - To-Do List - @mentions - Single Sign On - File Management - Activity Dashboard - Drag & Drop - Alerts/Notifications - Prioritization - Access Controls/Permissions - Screen Sharing - Content Management - Brainstorming - AI Copilot - File Transfer - Calendar Management - Status Tracking - Real-Time Notifications - Version Control - Task Management - Activity Tracking - Real Time Editing - Communication Management - Chat/Messaging - Tagging - Generative AI - Assignment Management - Task Scheduling - Project Management - Collaboration Tools - Workflow Management - Secure Data Storage - File Sharing - Document Storage - Task Progress Tracking - Discussions/Forums - Commenting/Notes - Reporting & Statistics - Contact Management - Video Conferencing - Progress Tracking - Mobile Access - API - Document Management - Customizable Branding **Administration** - Template Creation - Preset Template Availability - Custom Unsubscribe - Email Segmentation - Detailed Server Logs - Alerts/Notifications - Drip Campaigns - Customer Segmentation **Generative AI** - AI Text Generation - AI Text-to-Speech - Generative AI **Integrations** - Webhooks - Event Tracking API - Mail Send API - Spam Filter Testing - Activity Dashboard - Activity Tracking - A/B Testing **Agentic AI - Email Verification** - Decision Making **Additional Functionality** - Email Management - CRM - Fraud Detection - Data Verification - Lead Management - Contact Database - Spam Detection - A/B Testing - Email Distribution - Disposable Email Detection - Activity Dashboard - Unsubscribe Database - Syntax Check - AI Copilot - Data Import/Export - Spam Analysis - Subscription Management - Campaign Segmentation - Secure Data Storage - Third-Party Integrations - Duplicate Detection - Email Templates - Real-Time Monitoring - Contact Management - Anti Spam - Recipient Validation - Drag & Drop - Delivery Tracking - Email Marketing - Email Alerts - Bulk Email Verification - Drip Campaigns - Activity Tracking - Data Capture and Transfer - Bounce Rate Analysis - Catch-all Server Detection - Customer Database - Single Email Verification - Monitoring - Bulk Send - Spam Blocker - Mailing List Management - Email Tracking - Reporting & Statistics - File Transfer - Real-Time Data - Real-Time Analytics - Compliance Management - API - Domain Check - Email Address Extraction **Platform** - Custom Tracking Domain - Multiple Domains - Dedicated IP - Documentation - Sender Reputation Management - Tracking & Reporting - Enterprise Scalability - Performance and Reliability - Workflow Management - List Management - Template Management - Email Management - Subscription Management - Click Tracking **Additional Functionality** - Third-Party Integrations - Customizable Branding - Email Monitoring - Generative AI - Mobile Access - WYSIWYG Editor - Real-Time Data - Unsubscribe Database - AI Copilot - Drag & Drop - Geolocation - Event Triggered Actions - Simple Mail Transfer Protocol (SMTP) - Contact Database - Campaign Analytics - SMS Messaging - Customizable Forms - Autoresponders - Email Marketing - Message Personalization - Reporting/Analytics - Dynamic Content - Customizable Fields - Campaign Scheduling - Email Distribution ## Top mailboxlayer API Alternatives - [ZeroBounce](https://www.g2.com/products/zerobounce/reviews) - 4.7/5.0 (1,357 reviews) - [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) - 4.5/5.0 (2,581 reviews) - [Wiza](https://www.g2.com/products/wiza/reviews) - 4.5/5.0 (1,265 reviews)