Steps
Open the DingTalk desktop app > click Mail in the left sidebar > click Settings in the lower-left corner > Mail settings > Other mailboxes > Add another mailbox.
Advanced
Receive Emails from Other Mailboxes
Use DingTalk Mail’s mail collection feature to receive emails from other mailboxes without signing in to those mailboxes separately.
Use DingTalk Mail’s mail collection feature to receive emails from other mailboxes without signing in to those mailboxes separately.