Author: Magnus Holmgren Date: To: exim-users Subject: Re: [exim] replacing headers in ACLs
måndag 03 april 2006 14:44 skrev Stanislaw Halik: > On Mon, Apr 03, 2006, W B Hacker wrote:
> >>i'm trying to replace headers in the ACLs, so i could hint SpamAssassin
> >>(through exiscan-acl) about the status of callout verification. however,
> >>'warn message' adds a new header instead of replacing the existing one.
> >>
> >>is replacing headers ACL-time possible or is there any good workaround?
> >
> > Suggest you leave the original headers alone, add what you need
> > in an X-header, 'act' on that X-header.
>
> 'warn' inserts an another header below existing ones, the first one
> (above) is the one interpreted. SA interprets the first encountered
> header, when many of them exist. this way, rogue users could send email
> with headers influencing SA's decision. am i being overly paranoid? :-)
> You can get headers inserted above existing headers, by prepending :at_start:
or :after_received: to the message. See section 39.19 of the spec.
