I am trying to import a CSV file into my mailing list - however even though I have very carefully checked the original file and it is clearly in three columns - email, first name, last name, many of the last names are showing as doubled. that is marysmith@gmail.com Mary Smith Smith
It seems that the error is created when there is an email which has either numbers in it or an underscore .. eg mary_smith@gmail.com or marysmith14@gmail.com.I have imported the same list into MailChimp with no problem and no errors seen.I have been in touch with Squarespace help but without any luck so far. If