5 free lookups per month. No credit card required.
The most common Open Systems International email format is [first_initial][last] (ex. jdoe@osii.com), which is being used by 74.5% of Open Systems International work email addresses. Other common Open Systems International email patterns are [first].[last] (ex. jane.doe@osii.com) and [first] (ex. jane@osii.com). In all, Open Systems International uses 6 work email formats.
Email Format | Example | Percentage |
---|---|---|
[first_initial][last] | jdoe@osii.com |
74.5%
|
[first].[last] | jane.doe@osii.com |
25.5%
|
Email Verification Tool
Instantly check any Microsoft email. Get free lookups per month.