On Wed, 10 Aug 2022, Viktor Dukhovni via Exim-users wrote:
On Wed, Aug 10, 2022 at 04:00:51PM -0700, Marc MERLIN wrote:
I've also reached out to the Gmail team. They're aware. Which is not
to say that there's a quick fix in the works, the front-end connection
termination devices are both non-trivial and critical, so changes will
happen cautiously and likely slowly, and may be delayed by other
priorities...
Thanks.
Whose fault is it? debian/exim, or gmail?
It looks *strongly* like an interoperability problem between the Linux
kernel TCP implementation and the Google TCP/TLS termination front-ends,
unless all the Exim users who lately somewhat regularly show up to
report this issue are behind some as yet unidentified set of
middle-boxes that break TCP state.
It would perhaps be useful to also see any reports of success sending
sufficiently large messages to Gmail from the reported Exim builds and
Linux versions. If some users are not seeing any issues, then it would
be good to know how their situation is differs.
Might be good to know who is using openssl and who is using gnu-tls,
so that we can rule in or out the tls implementation.
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
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