# What's the algorithm for Apollo to find a valid email?

I want to know how Apollo to find a valid enterprise mailbox. What's the software's algorithm? Does it use big data?

##### Post Metadata
- Posted at: over 4 years ago
- Author title: O
- Net upvotes: 1


## Comments
### Comment 1

I believe it a mixture of first, last name permutation with the company domain. If you are really interested to generate email address would recommend to try Clearout.io. 

Btw, Clearout.io support native integration with Apollo, so its a just click away to generate email addresses for your contact list.  

##### Comment Metadata
- Posted at: about 4 years ago
- Author title: Helping Businesses To Capture & Reach Prospect Confidently.

Founder at Clearout Suite (Clearout.io | ClearoutPhone.io)




## Related Product
[Apollo.io](https://www.g2.com/products/apollo-io/reviews)

## Related Category
[Sales Intelligence](https://www.g2.com/categories/sales-intelligence)

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