5 free lookups. No credit card required.
The most common ISDEF email format is [first].[last] (ex. jane.doe@isdef.org), which is being used by 40.0% of ISDEF work email addresses. Other common ISDEF email patterns are [first] (ex. jane@isdef.org) and [first][last] (ex. janedoe@isdef.org). In all, ISDEF uses 9 work email formats.
| Email Format | Example | Percentage |
|---|---|---|
| [first].[last] | jane.doe@isdef.org |
40.0%
|
| [first] | jane@isdef.org |
20.0%
|
| [first][last] | janedoe@isdef.org |
10.0%
|
| [first_initial][last] | jdoe@isdef.org |
10.0%
|
| [last] | doe@isdef.org |
5.0%
|
| [first][last_initial] | janed@isdef.org |
5.0%
|
| [first_initial].[last] | j.doe@isdef.org |
5.0%
|
| [first]_[last] | jane_doe@isdef.org |
3.0%
|
| [first]-[last] | jane-doe@isdef.org |
2.0%
|