To add onto Matt's comment you can search the delivery log for the last 5 digits of the EML file name to find the specific delivery session for the SMTP session you included above.
So for example, you can see in the SMTP log the following line:
Data transfer succeeded, writing mail to 29520580.eml
You can then search the delivery log for 20580 to isolate the delivery session.
By reporting abuse, a moderator will be asked to review the content of this interaction to take further action, if necessary.