Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE customers ( customer_name VARCHAR, customer_id VARCHAR )
TABLE: CREATE TABLE customer_contact_channels ( active_from_date VARCHAR, customer_id VARCHAR, channel_code VARCHAR )

### Question ###
Find the name and active date of the customer that use email as the contact channel.

### Accurate SQL ###

SELECT t1.customer_name, t2.active_from_date FROM customers AS t1 JOIN customer_contact_channels AS t2 ON t1.customer_id = t2.customer_id WHERE t2.channel_code = 'Email'