Hello Spike, On Wednesday, May 15, 2002 at 4:51:58 PM you wrote in [EMAIL PROTECTED]">mid:[EMAIL PROTECTED] (at least in part):
S> Spammers have a trick they now use, which works if they know the S> "name" of the default mail server of the ISP. They can send a S> message to "whatever"@"mailservername" and EVERYONE on the S> mailserver gets a message! Absolutely WRONG! Unless the MTA does not offer a 'global distributor list' is simply _IS NOT_ possible to send an e-mail to all users by only sending it to the server directly instead of one domain this server handles the mail for. The domain part of recipient address(es) a mail is sent to only affects what configuration a mail server uses to handle the mail. In other words: it decides if the mail has to be treaded as 'local' or 'remote' on basis of the domain part (everything after '@', no matter is 'domain only' or 'full qualified domain name' of the server) and where to look if this is a valid address. There's no way to tell an MTA _in general_ to deliver mail to _all_ known local recipients. S> The "whatever" can actually be anything they wish to type! So I'd only need to send a mail to [EMAIL PROTECTED] and _every_ user on this system would get it? Stupid! In best case it will only delivered to you, but it might even be possible not even this will happen but the mail bounces if e.g. 'candw.ky' is configured on this server and delivery instructions exist, but 'perkey.candw.ky' is setup to be local but _non deliverable_ ... This is a very complex issue, but to all 'non-techies' out there: unless you're ISP / mail hoster does NOT setup a 'catch all' or 'global distribution account' there's no chance you will get all spam 'just because' ... Even if you're not mentioned in 'To:' and 'CC:' the mail has to be _directed_ to your address for you getting it. This is possible, because e-mail is delivered using an 'envelope' which is _completely_ independent from informations visible in mail header! This envelope is dropped with final delivery, that's why you can't see it, but it's present and used all the transport way ... And somewhere in this header your address appears or you woun't get the message. Period. To the 'The Bat! is phoning home and causing UCE' problem: TB! is _not_ phoning home (have tested this with network capture!) and it seems you (ztrader) in fact only got the 'welcome' message, hardcoded into the program. Ciao Pit -- Regards Peter Palmreuther mailto:[EMAIL PROTECTED] (The Bat! v1.60j on Windows 2000 5.0 Build 2195 Service Pack 2) A non-vegetarian anti-abortionist is a contradiction in terms. ________________________________________________________ Current Ver: 1.60k FAQ : http://faq.thebat.dutaint.com Unsubscribe: mailto:[EMAIL PROTECTED] Archives : http://tbudl.thebat.dutaint.com Moderators : mailto:[EMAIL PROTECTED] TBTech List: mailto:[EMAIL PROTECTED] Bug Reports: https://bt.ritlabs.com
