Chain letters within NTNU oymo About chain letters and NTNU's point of view to this. It is simple to distribute e-mail to a large number of e-mail addresses. In general the recipients do not like these e-mails. Electronic chain letters are a waste of bandwidth and a scorn to the netiquette which state acceptable behavior on the Internet. NTNU does not support this and request its users not to take part in distributing chain letters.