Re: [exim] "add_header" Modifier and Long Incoming Header Li…

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Author: Jasen Betts
Date:  
To: exim-users
Subject: Re: [exim] "add_header" Modifier and Long Incoming Header Lines
On 2013-09-29, Martin Nicholas <reply-2013@???> wrote:
> I use this line in my ACL config to add a header for our internal use:
> add_header = X-tvScience-SendingHost: $sender_host_address $acl_c_ht $acl_c_cc
>
> Recently a mail thus processed and forwarded was rejected by Gmail:
> 550-5.7.1 [77.74.196.254      11] Our system has detected that this message is
> 550-5.7.1 not RFC 2822 compliant. To reduce the amount of spam sent to Gmail,


neither is it RFC2048 compliant...

> Looks to me like the "X-CTCH-Spam:" was once a very long header line, a _single_ line indeed,
> which has been molested by exim and in so doing has pushed the subsequent headers into
> the body of the mail by adding a blank line. The required "Date:" & "From:" headers are now missing
> from the mail which possibly caused Gmail to reject it.


It would be nice to see the original before exim processed it.

> I have added ":at_start:" as a possible work around for this. Would that work in the interim?


huh?

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