The product itself is great. The billing structure is a bit naughty. When we first started using mail manager we purchased some licences to keep, that came with an optional, renewable, annual maintenance packages. Couple of years down the line they started asking for the annual service charge per licence (granted you get any software updates included and help from the tech team if there are any issues) But I did not want it as we never used the support and the software was working fine without the updates. BUT... now if you do not renew the service charge each year... they take the licence you purchased from you!! My view is you should be able to keep the licence but waiver your rights to updates and support. Have tried 2 or 3 times to make this point but get nowhere so just end up paying it. Found out that last year we got over charged by 6 renewals so they offered to under charge us by 6 this year. What happened next.... they cancelled 6 of our licences!! Like I said, good product but it's just not a smooth process.