The value entered into the “Emails” field of the “Edit Channel” must abide by the following instructions:
Separate multiple values with a comma. Optional format: John Doe <john@example.com>
Example (emails without display names):
john@example.com, jane@example.com
Example (emails with display names):
John Doe <john@example.com>, Jane Doe <jane@example.com>
Example (first email without display name, second email with):
john@example.com, Jane Doe <jane@example.com>
Example (first email with display name, second email without):
John Doe <john@example.com>, jane@example.com
Reference: