There are third-party solutions out there which will solve your problem. An example is mNotes5 from CommonTime. It’s not free software though, and you may need to trouble your IT administrator for help in setting it up. Because you are working for the civil service, you may have to check if there are IT policies in place which could restrict you from using your email outside of your work environment, too.
Put an end to your BlackBerry envy: mNotes5 wirelessly syncs Lotus Notes with any Windows Mobile 5/6 PDA or smartphone. In addition to e-mail, the software syncs your contacts, calendar, and tasks, and does so with military-grade security. It enables Sametime users to access the service via their smartphones and promises to help out in the event your handheld goes missing: It can remotely wipe the data from the lost device and wirelessly set up a new one.