Can not send e-mail when mobile data connection

With 3.0.3.10 I can not send e-mail (gmail account) with standard Jolla client if I'm on mobile data connection. The data connection works, and for example browser works as expected. When I try to send an e-mail, I get an alert: "Problem with sending email" If I connect to WLAN, sending e-mail works. Again disconnecting and using only mobile data sending e-mail does not work. Device is XA2 plus