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
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