Built a small Flask email

Built a small Flask email verification app for my own outreach workflow.

It can: - Verify emails in bulk - Check syntax, MX, SMTP, catch-all, disposable, and role-based addresses - Save every result to a database - Store name and niche metadata - Filter saved contacts by status or niche - Export verified contacts to CSV

The main reason I built it was simple:

I didn’t want to verify the same email twice or lose useful contact data after each check. It’s still a small internal tool, but it already saves time and keeps my outreach data organized.

Built with Flask, Python, and a database-backed contact system.

What small internal tool have you built recently to simplify your own workflow?