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Importing Mailing Lists

We’ve always supported importing mailing lists, but one very common aspect of exported lists is a lack of information about the origin of the subscription, and precisely when it occurred. We have supported the export of this information in our list exports for many years, however, we have not supported it on import. That’s now changed, and we are now able to import IP, timestamp, referrer URL, and user agent strings used by subscribers (at the point of subscription confirmation) from imported records. Imported records that contain a valid public IP and timestamp will now be marked as having completed a double-opt-in process. This is specifically compatible with the format used by Mailchimp, making migration to Smartmessages even easier. Documentation on our export and import formats has been updated to match.