• Emails may carry viruses. These are small programs that harm your computer system. They can read out your email address book and send themselves to a number of people around the world.
• Many people send unwanted emails to others. These are called spam mails. It takes a lot of time to filter out the unwanted emails from those that are really important.
• Emails cannot really be used for official business documents. They may be lost and you cannot sign them.
• Your mailbox may get flooded with emails after a certain time so you have to empty it from time to time.