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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?
The network for creativity
Join 1.25M professional creatives like you
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Creatives on Contra have earned over $150M and we are just getting started
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