On Sun, 10 Jul 2022 17:12:18 +0100, Gareth Evans <donotspam@fastmail.fm> wrote:
On Sun 10 Jul 2022, at 15:38, Roger Price <debian@rogerprice.org> wrote: [...]I removed the ipv6.disable=1 and rebooted, but this made no difference.I'm not sure if there may be other issues here too, but did you update-grub before rebooting?
No, I forgot. I am ashamed. I ran update-grub and command grep ipv6 /boot/grub/grub.cfg | wc -l now returns 0. No more mention of ipv6.
I re-booted and fetchmail now talks to exim4 correctly. Command ss -lnt | grep :25 now reports
LISTEN 0 20 127.0.0.1:25 0.0.0.0:* LISTEN 0 20 [::1]:25 [::]:*I can now read my mail on my Debian 11 machine. Many thanks to Gareth and all those who commented.
Roger