Re: [exim] message has lines too long for transport

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Συντάκτης: Evgeniy Berdnikov
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: Re: [exim] message has lines too long for transport
Hi.

On Thu, Nov 18, 2021 at 11:19:59AM +0300, Odhiambo Washington via Exim-users wrote:
> A particular e-mail is generating that error and I am thinking perhaps it's
> from a certain long header - "References:" in the thread.
> See https://pastebin.ubuntu.com/p/fK5wDzzxCW/


Yes, "References:" has 1018 octets while RFC limit is 998.
This is known bug for several Outlook versions.

> Not sure how to mitigate this one. Maybe I should truncate/remove the
> header - and possibly break the thread?


Better solution is to fold this header (split over multiple lines).
--
Eugene Berdnikov