Modifying the username part of the Return-Path: header

I am using postfix as MTA on my machine, but using my ISP's relayhost
for all out-going mail. My local username is AAA, but my ISP username
is BBBBB...

In main.cf I've got:

mydomain = blueyonder.co.uk
myorigin = $mydomain

So the Return-Path: header ends up as:

Return-Path: AAA@blueyonder.co.uk

I've got a sender_canonical map with the following line:

AAA@localhost BBBBB@blueyonder.co.uk

This works fine for the 'From' header, but I get 'AAA' in the
generated Return-Path: when I really should have 'BBBBB'. Any ideas on
how I can achieve that?

postfix is version 2.1.4 as shipped with Mandrake 10.1 Official.

Cheers

Colin

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Colin Brough Colin.Brough@blueyonder.invalid
(Replace .invalid with .co.uk to reply)

Colin.Brough@blueyonder.invalid (Colin Brough) wrote in <puhse2-ahe.ln1@brough.bd>:

>
>
> AAA@localhost BBBBB@blueyonder.co.uk
>
>This works fine for the 'From' header, but I get 'AAA' in the
>generated Return-Path: when I really should have 'BBBBB'. Any ideas on
>how I can achieve that?
>Colin
>

Hi,

I didn't use canonical_map but virtual instead. There I have per user following entry

ISPmail.address@ISP.com localmai.addressl@local.net

Regards,
Nils

On Wed, 23 Feb 2005 18:26:20 +0100, Nils Gehrig wrote:
> Colin.Brough@blueyonder.invalid (Colin Brough) wrote in <puhse2-ahe.ln1@brough.bd>:
>>
>> AAA@localhost BBBBB@blueyonder.co.uk
>>
>>This works fine for the 'From' header, but I get 'AAA' in the
>>generated Return-Path: when I really should have 'BBBBB'. Any ideas on
>>how I can achieve that?
>>Colin
>>
>
> Hi,
>
> I didn't use canonical_map but virtual instead. There I have per
> user following entry
>
> ISPmail.address@ISP.com localmai.addressl@local.net

Nils

Thanks for the suggestion, but I've still ended up with
'AAA@blueyonder.co.uk' as the generated Return-Path:

Cheers

Colin

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Colin Brough Colin.Brough@blueyonder.invalid
(Replace .invalid with .co.uk to reply)

> generated Return-Path: when I really should have 'BBBBB'. Any ideas on
> how I can achieve that?

i´m not quite sure, but i think the return-path is not generated by
postfix, it comes from the mail client you use...try to change the
settings there.

regards
jan

On Thu, 24 Feb 2005 10:41:43 +0100, Jan G wrote:
>> generated Return-Path: when I really should have 'BBBBB'. Any ideas on
>> how I can achieve that?
>
> i´m not quite sure, but i think the return-path is not generated by
> postfix, it comes from the mail client you use...try to change the
> settings there.

It is definitely being generated by postfix.

If I don't set one in the mailer, postfix sets it. If I modify the
'myorigin' setting in 'main.cf' the generated Return-Path: changes in
line with the modifications made. I used to have a Return-Path: that
looked like: 'AAA@CCCCCCCCC.blueyonder.co.uk', where CCCCCCCCC is my
local hostname, not exposed to the wider net at all!! Then I changed
main.cf to include:

mydomain = blueyonder.co.uk
myorigin = $mydomain

and now the Return-Path: is AAA@blueyonder.co.uk. I still want it to
be BBBBB@blueyonder.co.uk...

For my MUA, I'm using mutt, and I think the way I can generate extra
headers is:

my_hdr X-Operating-System: `uname;gen_savehooks`
my_hdr Return-Path: Colin.Brough@blueyonder.co.uk

The first one works fine, the second one makes not the blindest bit of
difference!!

I've just spotted that the 'pipe' delivery agent has the option of
setting the Return-Path, but to the envelope sender address - I think
this is the problem - at whatever point the Return-Path is being added
the envelope sender is AAA, the username on the localhost...

Cheers

Colin

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Colin Brough Colin.Brough@blueyonder.invalid
(Replace .invalid with .co.uk to reply)

there is a posting in the german suse maillinglist:
http://lists.suse.com/archive/suse-l...-Jun/0773.html

it says you should set the "set envelope_from=yes"
i don´t know if this works but you could give it a try

jan

Colin.Brough@blueyonder.invalid (Colin Brough) wrote in
<b29ve2-cpj.ln1@brough.bd>:

>On Wed, 23 Feb 2005 18:26:20 +0100, Nils Gehrig wrote:
>> Colin.Brough@blueyonder.invalid (Colin Brough) wrote in
>> <puhse2-ahe.ln1@brough.bd>:
>>>
>>> AAA@localhost BBBBB@blueyonder.co.uk
>>>
>>>This works fine for the 'From' header, but I get 'AAA' in the
>>>generated Return-Path: when I really should have 'BBBBB'. Any ideas on
>>>how I can achieve that?
>>>Colin
>>>
>>
>> Hi,
>>
>> I didn't use canonical_map but virtual instead. There I have per
>> user following entry
>>
>> ISPmail.address@ISP.com localmai.addressl@local.net
>
>Nils
>
>Thanks for the suggestion, but I've still ended up with
>'AAA@blueyonder.co.uk' as the generated Return-Path:
>
>Cheers
>
>Colin
>

Hi Colin

I have mydomain = local.net and myorigin=$mydomain

and use

virtual_alias_maps = hash:/etc/postfix/virtual the way I explained in the last MSG.
That way I always have the ISP's address as return path.
You did restart postfix?
In mut there is
my_hdr From: Nils <mail.address@ISP.com>

Cheers,
Nils

Finally sorted - inject mail using 'sendmail -f BBBBB@blueyonder.co.uk',
so in mutt change the 'sendmail' setting in .muttrc - see also mutt's
envelope_from setting.

Cheers

Colin

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Colin Brough Colin.Brough@blueyonder.invalid
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