5 free lookups. No credit card required.
The most common Efficient Frontier email format is [first] (ex. jane@efrontier.io), which is being used by 82.0% of Efficient Frontier work email addresses. Other common Efficient Frontier email patterns are [first][last_initial] (ex. janed@efrontier.io) and [first].[last] (ex. jane.doe@efrontier.io). In all, Efficient Frontier uses 5 work email formats.
| Email Format | Example | Percentage |
|---|---|---|
| [first] | jane@efrontier.io |
82.0%
|
| [first][last_initial] | janed@efrontier.io |
5.6%
|
| [first].[last] | jane.doe@efrontier.io |
5.6%
|
| [first][last] | janedoe@efrontier.io |
3.6%
|
| [first_initial][last] | jdoe@efrontier.io |
3.2%
|