Direct answer
A verifier may check the domains, but recipient servers can limit mailbox-level responses. Treat uncertain results carefully and retain original Unicode names.
More questions and answers
Can I verify German email addresses in bulk?
You can submit addresses from German providers to a bulk checker, subject to provider behaviour. Preserve accented names and subscription evidence separately.
Can I clean Japanese email addresses in a CSV?
Preserve UTF-8 data and check whether the verifier and sender support internationalised email addresses. Do not drop records because the display name uses Japanese characters.
What if an email has Chinese characters before the at-sign?
Internationalised mailbox names require compatible software and mail servers. Test support explicitly; a simple ASCII-only regular expression can reject legitimate formats.
Can I separate Australian and New Zealand contacts while cleaning emails?
Use the contact's trusted country field rather than assuming location from the email domain. Verify addresses independently and keep the geography filter auditable.
Does a .com.au email prove the customer is Australian?
No. Domain endings indicate something about registration or branding, not necessarily where the contact lives. Use collected country information for segmentation.