Edit From header

[Tassilo Horn <heimdall@uni-koblenz.de>]

Hi,

When I write e-mails I sometimes want to change the From header of my
mail to another e-mail address of mine. I have

(setq message-generate-headers-first t)

so when I compose a new mail the From line is like this

From: Tassilo Horn <heimdall@uni-koblenz.de> [1]

But I have more mail addresses, so I sometimes I want that From line:

From: Tassilo Horn <another@mai-address.com> [2]

But when I edit the From line the changes have no effect. The From line
stays like [1] when sending the mail, even if ich changed it to [2] when
composing the mail.

When I try (setq message-generate-headers-first 0) there's no From line
when composing mails, only To and Subject.

So what can I do to have my From line editable?

Much thanks in advance,
Tassilo
 
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"Well, see, one of the problems with MS software is we can't even
 get it to crash reliably" (T. Max Devlin)