Well, I agree. Re-reading this post can give one a headache indeed. >>Aack! Re-reading this thread can give one whiplash! >>Unknown users on IMail- I missed that. Well, MY IMGate knows what users >>exist, and sends a 554 reject for undefined users.
This is the closest response to what I'm trying to get across. Being that we are a provider, it would not be prudent to handle spam filtering at a global level as who are we to dictate what is and what is not spam to our users. I personally, would not want to implement what I'm researching. But, the powers that be would like to know.... Typically, there is a catch-all drop for undefined users (554 bounce). Something like a rule "@domain.com > [EMAIL PROTECTED]" which would send all unknown recipient mail to the postmaster. Now, in the event that a domain hasn't setup a drop like this, the mail server will respond with a "554 Unknown User" mail message. THAT message is what they seek to disable. In other words, NO "554 Unknown User" sent, the original message is just discarded. I really disagree with doing this (as would any self respecting admin), but mine is not to question, merely to provide answers. Will IMGate do this? Thanks to all who have taken their time to respond... Regards, Ed -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gerry Massat Sent: Friday, October 24, 2003 9:04 PM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] Imail discard vs. bounce John Tolmachoff (Lists) wrote: >>>This isn't about spam, this is about unknown users, which can't be >>>filtered until there is knowledge of whether or not the user exists, >>>which means it has to touch the imail server for user account reference. >>> >>> >>IMail can't do it, but IMGate can. With Sender Address Verification, >>IMGate >>does a temporary reject on delivery from an unknown sender. For example >>if >>my server gets an email from [EMAIL PROTECTED] it checks with the MX for >>example.com to see if the bozo exists. Then when the message is >>re-delivered IMGate will accept delivery if bozo is valid, and refuse >>delivery if it's bogus. >> >>So if the sender doesn't exist- it ain't legit! >> >> > >Gerry, wrong direction. This is on a non-existent recipient. The gateway is >receiving for all, then sending to Imail, Imail rejects and gateway tries to >send bounce. > >John Tolmachoff >Engineer/Consultant/Owner >eServices For You > Aack! Re-reading this thread can give one whiplash! Unknown users on IMail- I missed that. Well, MY IMGate knows what users exist, and sends a 554 reject for undefined users. I also wasn't following the original post properly, which was- > I.E. If I send mail to [EMAIL PROTECTED] and that use is > non-existent for that domain. Imail will send back a "bounced" mail > saying something to the effect of "User does not exist". I'd like to > know if that "bounced" mail can just be discarded instead of bounced back. > It's your server, if you want a rule to discard that info, go for it. I want to know that my email wasn't delivered in that case. (or was domain.com being hosted on IMail? Now I'm really confused!) To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
