8bit encoding in mail header by SpamAssassin

Hello list,

I actually have problems with mails coming from a server where they already have been checked by SpamAssassin and have been added headers. Amavisd, which I am running on my server, rejects these messages because they are not obeying RFC 2822, which forbids 8bit encoding in mails:

Oct 10 09:17:05 www amavis[2981]: (02981-06) BAD HEADER from <mail@host>: Non-encoded 8-bit data (char FC hex) in message header

'X-Spam-Report'\n  X-Spam-Report: ...       Nachricht wurde nur \\374ber
vertrauensw...\n                                               ^

So what can the sender's mailserver's administrator do to make SpamAssassin adding reports 7bit encoded?

Thank you for reading this.
Lars Ippich Received on Thu Oct 11 02:01:13 2007