On Thu, Apr 18, 2019 at 11:17 AM Viktor Dukhovni via Exim-users < [email protected]> wrote:
> On Tue, Apr 16, 2019 at 04:38:54PM +0100, Jeremy Harris via Exim-users > wrote: > > > The 998 limit is for de-folded lines. Go over that and you'd need > > multiple header lines; to do which you'd have to be duplicating > > header_names: as well as adding linebreaks. And yes, that would > > very likely break DKIM signatures. > > That'd be a rather unexpected Exim behaviour. SMTP limits "physical" > lines to 1000 bytes (including the CRLF), but there is no such limit > on folded headers, and many headers are "single instance" and must > not be present more than once. > It's expected *iff* you defold the header lines, which should not be done. Does Exim actually defold multi-line headers and *then* impose the 1000 byte line length limit? If so, that's a bug (imposing the per-line limit on the defolded header), since it's no longer about message format processing. -- Jan -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
