We are offering a Tell-Friend functionality in our product. For security reasons we've restricted the text body to 255 chars. I've received the following inquiry:
An attacker could send e-mails via a script. E-mail providers are scanning e-mails for SPAM wordings. If many of such e-mails are send from the same domain e.g. customer.com, then that domain will be set to a global SPAM-filter. Thus, the customer could not send out any e-mails since these will be filtered.
Which options do we offer on SAP side to prevent from that?