Why does it not show bounce analytics by Sender Domain and Sender Email?

If you use SendGrid as your delivery service, add the below custom header in your email system:

X-SMTPAPI:{ “unique_args”:{“from”:”%%Mail_From%%”, “subject”:”%%Subject%%”}}

Replace %%Mail_From%% and %%Subject%% with the corresponding merge fields supported by your email system.

After you add this header, you will receive the breakdown of bounce emails by the sender email address and the sender domain.