On 02/05/2024 10:19, Jeremy Harris via Exim-users wrote:
On 02/05/2024 03:38, Thomas Krichel via Exim-users wrote:
I have been wondering if there an exim filter or configuration
snippet that could, say for a set email-to addressre...@repec.org,
first spam filter, if not spam, take the from: field, make this the
reply-to, replace the original from field with say
forw...@repec.org and then remail to a couple of addresses.
SPF cares about the envelope-from for a message.
An Exim transport can be configured to replace the existing
envelope-from by using the "return_path" option.
The From: header is distinct from the envelope-from in
a message. SPF only cares about it for bounces (when the
envelope-from is empty).
The "headers_remove" and "headers_add" options are generic for both
routers and transports, and transports also have "headers_rewrite".
Your existing router that handles the forwarding
is already changing the envelope-to.
You might also want to look into SRS, a standard way of doing it.
Exim has support for SRS in recent versions.
--
Cheers,
Jeremy
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