سلام
اگه بخواین تو راندکیوب یه لیست ایمیل را import کنین، باید یا فرمت csv داشته باشه و یا vcf
امروز یه فایل با فرمت csv را میخواستم تو وبمیلم ایمپورت کنم با خطای زیر مواجه بودم:
Import failed! The uploaded file is not a valid import data file
 
در این مورد خود سایت راندکیوب توضیح داده :

Importing Contact Data from CSV

CSV import is always a tricky endeavor due to the nature of CSV being a totally unstructured format and actually not suitable for reliable exchange of contact data. The important part when preparing a CSV file for import into Roundcube is to make sure the column titles match the expectations of the importer. So fist of all, there must be a header row before the first contact line. Below is a list of commonly used column titles Roundcube can understand and correctly correlate with the according properties in the contact records:
(From Microsoft Outlook)

• Anniversary
• Assistant’s Name
• Assistant’s Phone
• Birthday
• Business City
• Business Country/Region
• Business Fax
• Business Phone
• Business Phone 2
• Business Postal Code
• Business State
• Business Street
• Car Phone
• Categories
• Company
• Department
• E-mail Address
• E-mail 2 Address
• E-mail 3 Address
• First Name
• Gender
• Home City
• Home Country/Region
• Home Fax
• Home Phone
• Home Phone 2
• Home Postal Code
• Home State
• Home Street
• Job Title
• Last Name
• Manager’s Name
• Middle Name
• Mobile Phone
• Notes
• Other City
• Other Country/Region
• Other Fax
• Other Phone
• Other Postal Code
• Other State
• Other Street
• Pager
• Primary Phone
• Spouse
• Suffix
• Title
• Web Page

(From Mozilla Thunderbird)

• Birth Day
• Birth Month
• Birth Year
• Display Name
• Fax Number
• Home Address
• Home Country
• Home ZipCode
• Mobile Number
• Nickname
• Organization
• Pager Namber
• Primary Email
• Secondary Email
• Web Page 1
• Web Page 2
• Work Phone
• Work Address
• Work Country
• Work ZipCode

(From Atmail)

• Date of Birth
• Email
• Home Mobile
• Home Zip
• Info
• User Photo
• URL
• Work City
• Work Company
• Work Dept
• Work Fax
• Work Mobile
• Work State
• Work Title
• Work Zip

در واقع این مشکل مربوط میشه به نوع قرارگیری اطلاعات .
برای رفع مشکل میتونین طبق عکس پیوستی اطلاعات را ذخیره کنین ، بعد اپلود و import کنین:

اشتباه رایجی که همه میکنن
اون Email رو نمینویسن و از ردیف اول ایمیل هست
امیدوارم این اموزش بدردتون خورده باشه