On Sat, Oct 22, 2022 at 02:35:28PM +0100, Jeremy Harris via Exim-users wrote: > On 17/10/2022 22:58, Heiko Schlittermann via Exim-users wrote: > > how do you deal whith incoming messages having a Thread-Index header (an > > other header indicates that the originating MUA was MS Outlook 16.0) > > with about 1200 chars. > > As a longterm goal in handling this and the References: header, > which can similarly grow, how about a bug just to document the > issue and relevant info such as the syntaxes of these headers? > > There could be one already; I recall a discussion somewhere about > what to do with References: but not where it was.
Discussed several times, in particular, https://lists.exim.org/lurker/thread/20190416.032757.fefb1cbb.en.html#i20190416.032757.fefb1cbb > A useful > suggestion was of a Usenet practice of retaining the first element > and the last couple, on the assumption that later ones are appended > as the list grows. In my practice there were many examples where Outlook 10+ generates binary garbage inside References: header. I suspect these incidents reflect memory corruptions (due to bugs in some Outlook versions), rather then problems in logical formatting. I can't recall similar corruptins with Thread-Index, but it's better to check for them. -- Eugene Berdnikov -- ## 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/