This morning, people started to have problems with Pidgin and their MSN accounts. Apparently, Microsoft changed something (i.e. SSL certificate) on their servers. Download this file, delete the “.txt” extension, so that you end up with “omega.contacts.msn.com” only, copy the file to your “.purple/certificates/x509/tls_peers” folder (which you can find like this on Windows / which is in your home