Hello? (was Re: Adding Envelope Headers?)
mailscanner at ecs.soton.ac.uk
Fri Feb 20 16:39:36 GMT 2004
At 16:35 20/02/2004, you wrote:
>On Feb 20, 2004, at 4:34 AM, Julian Field wrote:
>>At 11:12 20/02/2004, you wrote:
>>> > Users will NOT see the "Envelope-To" headers. Your argument
>>> > does not hold. Some MTA's will "do the right thing" with it.
>>>And some won't do the right thing. If you teach Exim (e.g.) to put in
>>>those headers they will simply stick in the message. And they are
>>>to. Therefore the User will be able to see them in his MUA.
>>>Possibly your setup will get rid of those headers at a later point.
>>>speak for yourself only. :-)
>>>Where is the problem to put in those header fields at your setup? Why
>>>should MailScanner do anything with it? I fail to see the positive
>>Right, it is in as an option. Envelope-From turned on by default,
>>Envelope-To turned off by default.
>>These will be in 4.27.
>Great! Thank you :-)
>Just a couple questions:
>1) Will MailScanner use them as the source of information? or just
>write them on output?
With one very minor exception, MailScanner never uses the headers for
anything. It uses the envelope addresses.
>2) Is there any way to guarantee the ordering of the headers?
No. They will come at the end.
>For example, if they're in the source in a particular order (as I put
>the other messages, for CommuniGate Pro, Envelope-To has to be first,
>and then Return-Path), is it guaranteed that MailScanner will keep them
>in that order?
>Or, if MailScanner is only generating them, and not reading them from
>the input, is there a way to make sure MailScanner puts them at the top
>of the message?
No. MailScanner always adds headers on the end of the list. Adding them at
the top is very messy as that is where the Received headers build a pretty
chain of information. You don't want to go inserting headers in the middle
of that, it will make a right mess :-)
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