SES Massmailing log not working

Hello AWS Support Team,

We have recently noted down the sudden spike in our outgoing email traffic today. We have enabled the logging on our AWS SES using the SNS but surprisingly, we are not be able to received any events on the same. We are able to receive the emais for all other standard email operations on configured email address. We would like to know the reason behind the same. Also, can you please let me know, from which particular IP this event is happening and can you please share your suggestions about blocking those ip permanentntly for the SES communication channel.

We are not getting logs when mass mailing happens in our account.

Thank you,