So all was going well till recently. I was using 2 year "old" N82 happily with Nokia Messaging Email. Also I tried same with N97 mini. Both worked seamlessly. Email delivery was good, I could check emails in HTML view by default.
Then I got Nokia E72 for trial, Thanks to guys over at @womworldnokia , I knew that E72 is flagship Eseries with Nokia Messaging Email and IM built-in. Also it had lifetime (???) Nokia Messaging subscription free. I was not really sure about this. But I knew that in some countries Nokia Messaging is launched with specific plans from Operators. This is similar to the way Blackberry Email works. So to use the service you need to have certain Data Plans. But in India , Nokia has never launched such Operator specific plans yet. Fact is that almost all newer Nokia smartphones now come with Nokia Messaging built-in. This works with almost any operator in India if you have working GPRS plan(WAP plans may not work but I have not checked it)
My N82, N97 mini were working fine with Nokia Messaging Email and my subscription plan was shown as "Nokia Messaging Trial"