Direct answer
Export people with a stable ID and email field, preserve other data, verify the addresses and merge status results back by ID. Do not overwrite contact owners or notes.
More questions and answers
How do I remove bad emails from Zoho CRM contacts?
Export relevant contacts with IDs, opt-out fields and email addresses; verify eligible emails; then update only the intended status fields after reviewing a sample.
Can I clean HubSpot contacts without deleting deals?
Yes. Keep contact IDs and associated CRM records intact, verify addresses separately and use a property or suppression flag rather than deleting contact objects.
How do I clean a Salesforce email export?
Use a contact or lead ID to map results back, preserve Email Opt Out and bounce fields, and update only verified status or suppression data after testing.
Can I verify Google Contacts email addresses?
Export contacts to CSV, inspect email columns and verify the appropriate addresses. Keep contact names and labels attached through a stable key.
How do I clean Outlook Contacts before mail merge?
Export contacts, deduplicate sending addresses and verify them before mail merge. Check consent and retain suppression records from previous campaigns.
How do I clean a CRM list with missing email addresses?
Keep contacts with blank email fields in the CRM if useful, but exclude them from email sending and verification. Do not fabricate an email address from the person's name.
What if CRM contacts have several different email addresses?
Verify each distinct address, track which is primary and respect opt-outs associated with the person and address. Avoid merging different destinations just because the names match.