To see a list of all the emails you have sent:
Click Reports > Communication.
Click New Report at the top-right of the page.
In the Report Type drop-down menu, select Email.
Set any other filters you desire.
When the report is open, you can see more information about when an email was sent, view a copy of an email etc. by clicking on the magnifying glass.
To export the report in Excel format, click the Export icon in the top-right of the page. To export the report in PDF format, click the Print icon in the top-right of the page. The report can then be downloaded or printed as required.
Any replies to your emails will be sent to your email account.