That all depends on the software sending the e-mail messages. Are you using a "canned" package written by someone else or did someone in your company write this application?
If written by someone outside your company (such as a canned product), then they may be able to help you change the system. If someone in your company wrote the application, they should be able to modify the application.
Either way, I would think that a daily summary report is probably more what you would want to satisfy your needs as referenced above. The summary report could either be accessed by web or send via e-mail.
If going to a summary report, I would suggest having the option built in (if not already there as an option) to set the summary frequency at differet levels such as daily, weekly or monthly.
The summary should list the subject lines and the number of recipients for each message batch.
- Tom