eM cleint version 7.1 has stopped working on a win XP computer. Last week or so having many issues connecting to server. Now it is not working at all.+
Yes, eM Client has not been supported on XP for some years. This means you cannot activate a license so after 30 days it will not send or receive messages. Surprised that you are only discovering this now.
Please see eM Client’s official announcement at https://forum.emclient.com/emclient/topics/windows-xp-no-longer-supported-issues-with-connecting-to-the-licensing-server