Author: Lena Date: To: exim-users Subject: Re: [exim] "add_header" Modifier and Long Incoming Header Lines
> From: Martin Nicholas
> Upon investigation I found this in the headers:
> X-CTCH-Spam: =?utf-8?B?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
> X-tvScience-SendingHost: 65.20.0.122 smtpout02.bt.lon5.cpcloud.co.uk us
>
> gSFRNTF81MF83MCwgQk9EWV9TSVpFXzUwMDBfTEVTUywgUkROU19CUk9BREJBTkQsIFJETlNfUE9PTEVELCBSRE5TX1NVU1BfU1BFQ0lGSUMsIF9fUEhJU0hfRlJPTSwgUkROU19TVVNQLCBfX0ZSQVVEX1dFQk1BSUwsIEJPRFlfU0laRV83MDAwX0xFU1MHA8AB?=
> X-Junkmail-Premium-Raw: ...
>
> Looks to me like the "X-CTCH-Spam:" was once a very long header line, a _single_ line indeed
Too long line, over 998 characters long, in violation of 2.1.1 in RFC-5322.
