Correspondence via instant messaging is gaining momentum today: it's fast, convenient and completely free.
The leader of communication is, perhaps, the icq service.
Behind him in the rating is a stable mail-agent, but it can only be used by someone who has mail on Mail.ru.
Log in to Agent. In the window that opens, with the list of contacts, double-click the left button on the contact whose message has not yet been read.
In the dialog box of the other party, review the currentMessage or click the "archive" button on the upper right. This will open the entire archive of your correspondence. You can also open the archive by right-clicking on the contact and selecting "message archive".
To receive notifications of incoming messages, click the "menu" button in the same contact list window.
Select the option "setting up accounts", then"Notification" tab and check the box "Notify about new messages". Then notifications of incoming messages will be displayed in the lower corner on the right on the agent icon.