On 11.04.15 21:10, Szépe Viktor wrote:
>When a local address - having no local delivery - is forwarded to
>another mail server which strictly checks SPF,
>it could be that the sender's domain has "-all" in SPF thus it is not
>possible to forward that message.
>BTW it causes backscatter.

the point of SPF is that you should not send mail using someone other's from
address, since the original sender sent the mail to you - it's you who is
sending it now, so you should send it under your ID.

>On forwarding Courier MTA sets MAIL FROM: to the same address as in
>the original message's From: header (or the original MAIL FROM:, I do
>not know) and this - the forwarding - mail server is not on the
>allowed hosts' list in SPF.
>
>Could we have a new option for setting a fixed MAIL FROM: on
>forwarding to make forwarding possible in these cases?

havce you tried couriersrs?

https://couriersrs.com/

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