Just to report a successful upgrade: I had exactly the same issue on one of my mail servers, with exim versions up to 4.96-15+deb12u7. It was even triggered by the the same recipient domains (icloud.com and me.com).
Upgrading to 4.98.1-2~bpo12+1 from bookworm-backports solved the issue. (Now I get a proper error message, "SMTP error from remote mail server after RCPT TO", because it looks like my IP is on some blocklist.) In case it's relevant: This was on a rather old (and often upgraded) system that is still using the i386 architecture. Jan On Tue, Apr 09, 2024 at 09:07:09AM +0200, Didier Raboud wrote: > No; it's a production system, and downgrading along the past stable > releases was OK'ish; upgrading to unstable's, less so. > > On Sun, Apr 7, 2024 at 8:52 AM Andreas Metzler <ametz...@bebt.de> wrote: > > > Control: found 1060457 4.96-15+deb12u2 > > > > On 2024-04-02 Didier Raboud via Pkg-exim4-maintainers < > > pkg-exim4-maintain...@alioth-lists.debian.net> wrote: > > > wrote: > > >> Il giorno ven, 12/01/2024 alle 18.15 +0100, Andreas Metzler ha scritto: > > >>> Is this a regression in 4.96-15+deb12u4? i.e. can you still reprroduce > > >>> the issue after downgrading exim4-daemon-heavy to 4.96-15+deb12u3 [1] > > >>> (and re-reproduce after upgrading again)? > > [...] > > > This does not seem to be a regression; I tried as far back as deb12u2 and > > > the same issue could be reproduced. > > > > Thank you. > > > > Would you be able to check with 4.97, too? I intend to provide backports > > once testing has stopped being stuck due to t64. > > > > cu Andreas > > -- > > `What a good friend you are to him, Dr. Maturin. His other friends are > > so grateful to you.' > > `I sew his ears on from time to time, sure' > >
