Chasing some log files

Hi,
I am after some Postfix log files. I'll try to keep it short.

I used to be a host but now I just have 2 VPSs that I dick around on.
As such I only host my own email account.

I have been messing about with a plugin that reads the mail log and looks for stuff. Basically looking for suspicious connections. Stuff like an IP very slowly trying to login over an extended time.

My log files are too small and boring.

I have searched everywhere online and the only full logs I can find are from around 2009. There are some newer but not much.
I have pieced together bits from support forums and such, which was good at picking up errors but what I need is normal logs. Recent enough to be the same format as currently used.

So I would appreciate any help even a point in the right direction, as I am all out of ideas as how to get any.

If someone would like to have look/play with the code let me know.
(I wont post publicly until I get some feedback.)