A communication apparatus allowing confirmation of e-mail address before sending and allowing the load on the network to be reduced is disclosed. An e-mail address database is provided for retrievably storing a history of sending results for respective destination e-mail addresses. A controller searches the e-mail address database to find at least one e-mail address that has a domain name identical to that of the destination e-mail address and has a normal sending result. When the at least one e-mail address is found in the e-mail address database, the controller sends an e-mail attached with the image data to the destination e-mail address.