The most common CASTO email format is [first_initial][last] (ex. jdoe@castoinfo.com), which is being used by 99.0% of CASTO work email addresses. Other common CASTO email patterns are [first][last_initial] (ex. janed@castoinfo.com) and [last] (ex. doe@castoinfo.com). In all, CASTO uses 6 work email formats.
Email Format | Example | Percentage |
---|---|---|
[first_initial][last] | jdoe@castoinfo.com |
99.0%
|
[first][last_initial] | janed@castoinfo.com |
1.0%
|
Email Verification Tool
Instantly check any Microsoft email. Get free lookups per month.