send instant message to offline recipient

From my Android phone, with Hangouts, or from in my PC I can send a message to someone offline, and she gets it, when she gets later online. In eM Client 6.0 her address does not even show up in chat. Is there a workaround, or I still have to keep gmail open for this? (It kind of beats the purpose of having eM Client installed.)

Hi, you can show offline contacts in eM Client easy way - click on “Chat” button, then hover your mouse over it - gray cogwheel should appear, click on it and uncheck “Show online users only”.