On 19/03/2023 17:42, Ian Z via Exim-users wrote:
> X-Original-Foo: the-ur-foo
> Foo: the-no-longer-ur-foo
>
> I am not thinking of a header with addresses here, so Exim's rewrite
> mechanism doesn't apply. Is there a "best" or "accepted" way to do
> this? In particular, can I do this in an ACL:
>
> add_header = X-Original-Foo: $h_foo:
> set acl_m_original_foo = $h_foo:
> remove_header = Foo
> add_header = Foo: the-no-longer-$acl_m_original_foo
Yes. And you don't need the temporary variable.
> (I am not sure if the last add_header trum^H^H^H^Hoverrides the
> preceding remove_header.)
No.
>
> And if not in ACL, can I do something similar in a router or transport?
Yes, both.
--
Cheers,
Jeremy
