Re: How is this possible ?

BCC is one possibility, forged headers is another. Short answer: a message has two components: the P1, or envelope, and P2, the body. For SMTP the addressing in the P1 does not have to match the addressing in P2. P1 gets the message delivered, P2 is what populates the message fields. -

RE: How is this possible ?

It's possible to setup SMTP masquerading to mask the true domain to reply to messages. -Original Message- From: RBHATIA [mailto:[EMAIL PROTECTED]] Sent: 27 February 2002 16:42 To: Exchange Discussions Subject: How is this possible ? I have a user who received an email where the TO:

RE: How is this possible ?

BCC? -Original Message- From: RBHATIA [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 7:42 AM To: Exchange Discussions Subject: How is this possible ? I have a user who received an email where the TO: field showed a 'bellatlantic.net' email address (which he claims he

RE: How is this possible ?

I keep telling y'all to read RFCs 821 and 822. This all becomes a lot clearer when you understand the foundation technology. Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant Compaq Computer Corporation Protecting the world from PSTs and Bricked Backups! -Original Message- From:

RE: How is this possible ?

: How is this possible ? I keep telling y'all to read RFCs 821 and 822. This all becomes a lot clearer when you understand the foundation technology. Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant Compaq Computer Corporation Protecting the world from PSTs and Bricked Backups! -Original

RE: How is this possible ?

PROTECTED]] On Behalf Of William Lefkovics Sent: Wednesday, February 27, 2002 9:35 AM To: Exchange Discussions Subject: RE: How is this possible ? Or RFC2821/2822. I've read them several times and I still don't understand the foundation technology. Can't we wipe it clean and start over

RE: How is this possible ?

Subject: RE: How is this possible ? After reading them and (I think) understanding them, I'm amazed that e-mail flows at all. Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant Compaq Computer Corporation Protecting the world from PSTs and Bricked Backups! -Original Message

RE: How is this possible ?

Discussions Subject: RE: How is this possible ? I keep telling y'all to read RFCs 821 and 822. This all becomes a lot clearer when you understand the foundation technology. Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant Compaq Computer Corporation Protecting the world from PSTs and Bricked

RE: How is this possible ?

mailserver 25 helo FakeServer.com mail from: [EMAIL PROTECTED] rcpt to: [EMAIL PROTECTED] data test message quit -Original Message- From: Exchange Discussions [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 12:54 PM Subject: RE: How is this possible ? In the header, all fields

RE: How is this possible ?

So I guess this user used the BCC field to send email to this person. -Original Message- From: Dupler, Craig [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 12:55 PM To: Exchange Discussions Subject: RE: How is this possible ? In the header, all fields are optional

RE: How is this possible ?

One cupie doll to the customer in the argyle sweater. -Original Message- From: RBHATIA [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 10:40 AM To: Exchange Discussions Subject: RE: How is this possible ? So I guess this user used the BCC field to send email

RE: How is this possible ?

Yes, that's why you do it from the public library. -Original Message- From: Mark Rotman [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 10:12 AM To: Exchange Discussions Subject: RE: How is this possible ? Actually, You can skip all the 822 fields and most hosts