Импорт пользователей в адресную книгу Exchange

1Делаем выгрузку аналогично https://docs.microsoft.com/ru-ru/office365/securitycompliance/bulk-import-external-contacts

 ExternalEmailAddress,Name,FirstName,LastName,StreetAddress,City,StateorProvince,PostalCode,Phone,MobilePhone,Pager,HomePhone,Company,Title,OtherTelephone,Department,CountryOrRegion,Fax,Initials,Notes,Office,Manager
danp@fabrikam.com,Dan Park,Dan,Park,1234 23rd Ave,Golden,CO,80215,206-111-1234,303-900-1234,555-1212,123-456-7890,Fabrikam,Shipping clerk,555-5555,Shipping,US,123-4567,R.,Good worker,31/1663,Dan Park
pilar@contoso.com,Pilar Pinilla,Pilar,Pinilla,1234 Main St.,Seattle,WA,98017,206-555-0100,206-555-0101,206-555-0102,206-555-1234,Contoso,HR Manager,206-555-0104,Executive,US,206-555-0105,P.,Technical decision maker,31/1000,Dan Park

2  Меняем точки с запятой на запятые. Пересохраняем в Unicode (хоть в WordPad),
Import-Csv C:\IMPORT\test.csv -Encoding Unicode |%{New-MailContact -Name $_.Name -DisplayName $_.Name -ExternalEmailAddress $_.ExternalEmailAddress -FirstName $_.FirstName -LastName $_.LastName -OrganizationalUnit "OU=_Contacts_CSV,OU=_STAFF,DC=msk,DC=fbk,DC=ru"}