Thus said Michael Richardson on Mon, 23 Feb 2026 01:57:54 -0500: > Including killing deivery of a mailing list that mail admins use to > tell each other about such problems.
Hmm, I noticed that my email sent directly to [email protected] is stuck in the queue because it's failing TLS verification. Perhaps this explains some of the trouble you've been having with receiving emails? Specifically it looks like the certificate on your SMTP server tuna.sandelman.ca does not include the full chain issued by Let's Encrypt. This is required because your certificate is signed by an intermediate CA, not the root. Your certificate is signed by R12: https://letsencrypt.org/certificates/ I thought I would mention it here in case you weren't already aware. Andy
