I don't understand which wallet address to use. My command line is

NsCpuCNMiner64.exe -o stratum+tcp://mine.moneropool.com:3333 -u 449TGay4WWJPwsXrWZfkMoPtDbJp8xoSzFuyjRt3iaM4bRHdzw4qoDu26FdcGx67BMDS1r2bnp7f5hF 6xdPWWrD3Q3Wf7G6 -p x -t 3

And it works fine. But I think that I am mining for the developer. If I change the "449TGay..." key for my address on "my ether wallet" the program returns an error of "invalidaddressusedforlogin".

It returns the same error on other pools using my address, but works fine with the 449TGay... address.

Please let me know what I am doing wrong.

Thanks for your help