Replacing email envelope

[Marc Roos]

I am not sure what you are trying to achieve. But I would almost say you 
should do something with sendmail routing or so. Then you route messages 
to any server and any destination email address as you like. Without 
changing the headers and you may not need to add a reply-to header. 







-----Original Message-----
From: Stephan Bosch [mailto:stephan at rename-it.nl] 
Sent: 30 November 2018 10:31
To: jon.sp2 at wp.pl; dovecot at dovecot.org
Subject: Re: Replacing email envelope




Op 20/11/2018 om 22:51 schreef jon.sp2 at wp.pl:


	Hi,
	

	Could you please advice how I can replace envelope of a message 
received on my server? Best would be using sieve.
	

	Simple case - email A at example.com receives message, which I'd like 
to repack into new envelope (I want to have control what values in the 
envelope will be there - from, to, replay-to et.c) and send to 
B at test.com.
	

	At first I wanted to use editheader extension, but it is not 
allowing me to modify From or To values as far as I can tell. Another 
idea was to use envelope, but I don't see any way of editing values. 
Only reading.
	

	Now, I am thinking of writing script and from sieve it will be 
passed there, where I'll do message parsing and send new message using 
mutt or something similar. Frankly speaking I suppose there is much 
better solution to that and I'd appreciate any advice on the topic.
	




Your story conflates the message envelope with the message header. From 
your description, I gather you in fact mean the message headers that 
contain sender and recipient addresses. You should be able to modify 
those using the editheader extension (first deleteheader then 
addheader).




Regards,

Stephan.