Anyone seen this particular error before when trying to sync Civi contacts to Mailchimp?
API call to lists/batch-unsubscribe failed: SSL certificate problem: unable to get local issuer certificate
Googling this didn't turn up much that was helpful; I've inquired of Mailchimp but have yet to hear back.
CiviCRM 4.4.14/Mailchimp extension v 1.7
Thanks in advance, Lesley