On 9.4.2012, at 6.06, /dev/rob0 wrote: >> - is there a particular reason why these headers are not already >> an option via lmtp (aside from nobody asking for or seeing the >> need previously). Is there an architectural or conceptual reason >> why these headers should not be added via an lmtp connection? > > Second, it really seems more appropriate to do this in the LMTP > daemon. It gets the envelope recipient for each mail and can do this > (in theory) much better and more accurately than Postfix can. We > don't know what the LMTP daemon is going to do with that mail ... > perhaps it will be rewritten and forwarded on somehow.
There's a problem with aliases that LMTP server can't solve. Lets say I have two aliases: info@domain -> shared@domain sales@domain -> shared@domain The LMTP server sees RCPT TO:<shared@domain> for mails that arrive to both of them. If the sender sent the mail to only one of them, the original address can at least in theory be read from the Received: lines. If the sender sent the mail to both of these aliases, the LMTP server won't see the originating address anywhere at all.
