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<<Accepting legitimate email is more important than rejecting non-legitimate email>>.
This has to do with the long term usability and usefullness of emails.
How does rootr.net uses blacklist spam filtering ?
rootr.net uses a few blacklist to avoid spam. Each list is classed in 3 levels:
What is rootr.net's policy to filter bulk spam ?
Our current policy is to reject automatically spam mails sent from well-known sources, and where the spam detection certainty is very high. However current technology does not permit to make actual 100% accuracy using automated means, and probably never will. Removing this filter would mean a lot more spam ends up in user's in-boxes, about 2 to 3 time more. Rootr.net follows and adapt spam filtering technology as it improves regularly. The current spam situation is not expected to improve for at least 4-5 years, slowly.
This filtering applies to spam mail that is bounced before it even reaches any in-boxes.
Can I disable this spam filter for my domain(s) ?
Yes, rootr.net gives you the choice.
The door can be left wide open on a per-domain basis, with no filtering at all.
If you do not wish to use this protection filter, please send an email to email@example.com and mention the domain name(s) that should be left unprotected from spam flow. However be aware that leaving this protecting door open will also very likely let a lot more spam in the domain's in-boxes, than you are used to. Consider how annoying is, the amount you already receive.
If you are considering this option, in order to help make the decision,
you can ask a few things to firstname.lastname@example.org beforehand:
In what case can a legitimate e-mail be rejected ?
Typically this happens rarely. About one in a thousand or so. however those remaining cases reveals usually:
Some file was rejected because it was insecure ?
A file rejected because of insecure attachment, is different than a spam issue. The solution is to use zip attachments. If your user don't know how to use zip, put the file from a downloadle location on your web site.
Understanding developments in spams
Many spam houses have already trespassed inside full illegality, by using trojan wide mesh systems. These spam gangs can already circumvent any ip-based blacklists. Thus blacklists are less usefull than they were a year ago. This is the current tendancy.
Rogue spamers often advertise only web sites links, and don't need a direct reply address. The advertised site may be itself a scam. But it can also be a legitimate business web site who was itself dupped into "advertising" his products to "millions" of users, but not knowing of the illegality of their promoters. Such spam-promoted businesses are ignorant, but also victims of the rogue spamer, as it always end up harming their business reputation. This form of economy system is itself not unlike Multilevel Marketing, and not strangely, often related behind the scenes.
Spam houses make profits, not by selling products with some fancied "one-in-a-million reply is enougth for a few extra sales", but by selling advertising packages to ignorant victims, such as businesses new to the internet, especially in the developping world and rural areas. Because of their ignorance, such business users are easy target victims for spam gangs.
Not all spam have a moneyable purpose, some are motivated by fanaticisim, some motivated by fear of perceived danger, or some fear of loss of opportunity to help, the fear being mistaken as guenine helpfullness, which do not use chain e-mails. However, by far the majority of spam mails are smoke screen adverts.
This whole issue can be confusing to the un-warry, and we wish end-users not to have to be confronted with it. Rootr.net's customers are protected from those scams as much as feasible with current technology.
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