DUO Email Format

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The most common DUO email format is [first].[last] (ex. jane.doe@duo.computer), which is being used by 40.0% of DUO work email addresses.

Other common DUO email patterns are [first] (ex. jane@duo.computer) and [first][last] (ex. janedoe@duo.computer). In all, DUO uses 9 work email formats.

DUO Email Formats and Examples

Email Format	Example	Percentage
[first].[last]	jane.doe@duo.computer	40.0%
[first]	jane@duo.computer	20.0%
[first][last]	janedoe@duo.computer	10.0%
[first_initial][last]	jdoe@duo.computer	10.0%
[last]	doe@duo.computer	5.0%
[first][last_initial]	janed@duo.computer	5.0%
[first_initial].[last]	j.doe@duo.computer	5.0%
[first]_[last]	jane_doe@duo.computer	3.0%
[first]-[last]	jane-doe@duo.computer	2.0%