wilderness - 2:01 am on Apr 27, 2013 (gmt 0)
The point? Lots of IT professionals use their own mail servers and they can be hosted anywhere, perhaps in one of the "server farms" that you have blocked. Do you really think that rabidly blocking whole IP ranges is good for your business?
In this instance your using the term "IT professionals", rather loosely.
Any professional that uses his personal email servers for his IT business has a few marbles missing.
I hope the day never comes when email logs are integrated into "websites raw visitor logs", as that would be a real nightmare. Viewing them via my router logs is already a nightmare.
The primary premise of this forum for more than a decade has been the following:
"Each webmaster must determine what is beneficial or detrimental to their own website (s)."
keyplyr and I agree on many methods (IP's UA's and more), however simultaneously, we also disagree on the many methods. Because we each have different goals and detriments.
Behind the same logic (beneficial or detrimental) is reason that there does NOT exist a standard set of IP's and UA's to "black-list" in place for all websites to copy and paste.
Behind the same logic (beneficial or detrimental) is also the reason that nothing similar exists for "white-listing".