I think that buy using the word 'dotnetnuke' in your email address.. as I have done and many others, it makes you a target for getting spam that is generated randomly and has nothing to do with the being harvested or spidered.
I sometimes help clients with their email campaigns, and in doing so, you also get to read about harvesters - products that go through websites and pick up names in the pages, and add them to lists (another reason I try to promote the use of forms). I remember seeing a while ago, an article that talks about the tricks people use to send spam. They are very sophisticated as even with a .00001% success rate, if' you're sending out literally billions of email, there is money to be made.
The usual hits are to the common names, like web, admin, webmaster, sales, support, postmaster - these are randomly generated and attached to domains that are already registered, and simply add the common names to the urls and hey presto you've got millions of emails that you can send to. They have no idea who you are and are simply fishing for live targets to add to their lists.
Then, they run through people's names, adding them to the domain extension and billions more names are possible.
So asp, dotnetnuke, joomla, nospam, mambo.... you name it - whatever these spammers can think of, they'll be adding to a domain they know is live and sending spam. They are just looking for a response, so that's why I always tell my clients NEVER EVER try to unsubscribe to news sent by spammers. If you know it's spam, never seen it before, simply by replying - you've put yourself on a list, and you have acknowledged the domain is live and active. I have had to change people's email several times when they have done this to eliminate it.
I was speaking to a colleague not long ago about how they handle spam and they mentioned getting about 93,000 email a day, to which 99% was spam. You simply can't imagine unless you are a mail administrator what goes on behind the scenes on 'cold front' with trying to protect their servers from being hit with spam. Then there are the constant attacks on the server for probing open ports or the ability to find an unsecured box which allows relay (that means - I can send mail from anyone through your machine)
It's a battle field. And they are getting so sophisiticated with how their email is structured, named, subjects they use, wording in email... It's big business for these guys and I despise them immensely.
Based on my understanding how it works, I couldn't believe in a month of Sundays that the guys here would even think of selling your email addresses.. it's so far fetched, that I felt if I give you an insight on how the spammers work, it might help shed some light because getting spam these days may have nothing to do with where you've been, but merely what you've named your email address.
Nina Meiers
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