DKIM is a technique in which an organization can take responsibility for a message sent by e-mail. In fact, DKIM originated from 2 separate techniques: DomainKeys of Yahoo! and Internet Identified Mail from Cisco. DKIM is a base for authentication and not anti-spam technology, but it is often used to prevent spam. Read More
SPAM is also an acronym for Sending People Annoying messages, and it is also known as Unsolicited email. It's not really easy to give a definition of spam, because not every junk email is spam. It is often the case that spam is sent to a group that is large. Read More
BCC means blind copy and is used when sending an email. With the receivers it is often possible to also fill in a BCC receiver field. When you use the Bcc field, it means that the normal recipients of the e-mail cannot see the BCC email addresses. It seems as if the people in the BCC field do not receive the mail, from a privacy point of view it is good to do so. Also to reduce unwanted mail it is useful to use Bcc: reply to all or reply to all has no effect on the Bcc people. In business, BCC is often used if the recipient is not allowed to know that the message is also sent to others.
WHATSAPP is a messaging service, a chat program for mobile phones actually. This allows you to start conversations with other users, you can also send pictures or movies back and forth. The program has become popular because it is used as an alternative to SMS. Read More
EOM (or better yet (EOM)/<eom>) is used to indicate that the message is not larger.</eom> It is used on Twitter and in MSN and SMS messages, but it can also be used in the e-mail. If you put EOM in the subject of an e-mail message, the recipient knows that the rest of the message does not need to be read. So it is useful for small messages.
The word "sexting" originated in the time when sending SMS messages started to come up, but nowadays it is also used when people post messages on Twitter or Facebook. Sexting therefore comes from SMS, but is increasingly widely drawn. It is still about messages with evocative texts, pictures in hot poses, etc. Read More