The ICT Department of Wageningen UR has tightened its spam filter several times in the past few months as a defense against spam attacks. But the new filter is functioning too well. Ordinary e-mail is occasionally rejected, confirms the department.
As a solution, ICT is currently considering a technical adjustment to the infrastructure, as a result of which the sender will be notified when his or her mail was destroyed by the spam filter. That will, however, be a costly intervention, according to Booij.