A direct message (DM) is a private message sent via Twitter to one of your followers. You can only send a direct message to a user who is following you; you can only receive direct messages from users you follow. For more information, we suggest you read the following page : Posting or deleting direct messages.
2016-04-28 - It is now possible to refine your targeting by clicking on the number of people found after the verification. 2015-12-30 - Sent a direct message up to 5000 followers. 2015-11-05 - Sent a direct message up to 4096 characters. 2015-09-08 - Revising our prices downward. 2015-08-01 - Method of payment by credit card. 2015-03-12 - Sent a direct message to 1000 followers a day. 2014-06-17 - Sent a direct message to your last N followers. 2014-05-27 - New navigation bar for a better user experience. 2013-10-28 - Launching of the service.