![]() Unless action is taken, email servers could be inundated with useless emails thereby hogging system resources and affecting performance. This results in email users receiving NDRs from people to whom they had never sent an email in the first place. ![]() Some are genuine but others are not and these are used to generate NDR messages by manipulating the “From” address to use a real domain sender. However, spammers can cause a considerable increase in NDR activity because they send junk mail to thousands of email addresses. ![]() Users receive NDRs, for example, when an email does not arrive at a recipient’s address and notification is sent to the sender. NDRs are a common part of email exchanges. Another option is an NDR or non-delivery report spam. In the beginning, spam was mainly text-based but over the past few years, spammers have resorted to using embedded images and attaching common file types such as mp3s and Excel documents in emails to gain access to mailboxes. ![]() ![]() Research shows that up to 90 per cent of emails received by companies are spam and spammers have adopted a variety of methods to bypass spam filters used in anti-spam software. GFI Software, a leading developer of network security, content security and messaging software, has launched a paper to explain what NDR spam is all about and why spammers have resorted to this effective method to distribute unsolicited mail. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |