On 31 12 2004 at 5:02 pm -0500, Jeff Potter wrote: >Nope, you can have multiple RCPT TO lines.
Hmm, okay, thanks for enlightening me. I should have read the RFC. >And you wouldn't want to put >the "X-Original-BCC" line in the message, because if you had multiple >bcc recipients on the same host, they'd be able to see the other bcc >recipients. That's true. However, perhaps this raises a philosophical question of the function and obligation of an MTA. Arguably, an outbound SMTP service is acting as an agent for its user and thus if the user uses Bcc to send a message, the SMTP should do its utmost to ensure the implied privacy; that is, to use multiple sessions if required to deliver to the remote host. Conversely, an inbound SMTP service is also acting as an agent for its recipients, and it can be assumed that the users will want to know as much as possible about the messages they are receiving. Thus, if the SMTP receives something a multi-party RCPT TO, I argue that it should do its utmost to convey that information to the recipient(s). In other words, if you are trying to BCC something to both me and my enemy, it is incumbent upon your outbound service to keep them separate and private. If both my enemy and I happened to live on the same host, our inbound SMTP would be providing a disservice to us both by throwing away the extra information it has about the envelope recipients. Therefore, I propose that it would be acceptable, and even desirable, for Courier to log all RCPT TO addresses in an X-Original-Bcc (or Received or whatever) header. >(Assuming the MTA has one instance of the message and a >separate control file listing the deliver-to's.) Which I gather is how Courier works...? -b -- Ben Kennedy, chief magician zygoat creative technical services 613-228-3392 | 1-866-466-4628 http://www.zygoat.ca ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
