Browser-based PHP tool to bulk unarchive and resubscribe Mailchimp contacts using the Batch Operations API. No SSH needed. Handles 100K+ contacts with date filtering, resume support, and a live progress dashboard.
php cpanel email-marketing mailchimp mailchimp-api email-automation no-ssh batch-operations bulk-unarchive mailchimp-contacts
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Updated
May 16, 2026 - PHP