The latest update of MailBolt.io™ redefines the way professionals manage and verify their email lists — making the process not only more powerful and flexible, but also faster, smarter, and more intuitive than ever before.

With version 1.8, MailBolt.io™ takes a major leap forward, giving marketers, developers, and businesses full control over how they upload and process their contact data. Whether you’re handling small segments or massive lists with custom fields, this update ensures seamless compatibility, unmatched speed, and zero hassle. Introduces a highly requested feature: full support for custom fields in your email lists. That means you can now upload your contacts with names, tags, company details, locations, or any other additional data — and everything will be processed smoothly without any extra work from your side.

This update eliminates the need for complicated CSV formatting or manual field mapping. Just upload your list and MailBolt.io™ handles the rest. It’s automatic, fast, and completely free.

Why This Update Matters

If you’re working with segmented or personalized campaigns, custom fields are essential. Now, thanks to MailBolt.io™, your email verification process aligns with your data structure — no more wasting time reformatting files.

This update is especially useful for:

  • Email marketers managing large, dynamic lists
  • Agencies handling data from multiple sources
  • Businesses that rely on advanced personalization

Key Benefits of MailBolt.io™ V1.8

  • Upload email lists with any number of custom fields
  • No formatting or mapping required
  • Fully compatible with bulk email uploads
  • Fast and accurate email verification
  • 100% free to use

How to Use It

  1. Prepare your CSV or TXT file with emails and any custom fields you need.
  2. Upload the file directly to the Email Verifier tool.
  3. MailBolt.io™ will process the data, verify the emails, and retain your custom fields — automatically.

Try It Now

The feature is live on all MailBolt.io™ accounts. Visit mailbolt.io/email-verifier/app/ and experience how simple email verification can be with full custom field support.

MailBolt.io™ V1.8 makes it easier than ever to keep your email list clean, deeply personalized, and ready for high-impact marketing campaigns.

Whether you’re managing thousands of contacts or working with smaller, highly targeted segments, the new version gives you the tools to verify addresses accurately, preserve valuable custom data, and streamline your outreach efforts with confidence. Say goodbye to bounces, data loss, and wasted time — and say hello to a smarter way to manage your email strategy.