New #blog post: "Signing sieve vacation auto-reply messages with dkim using postfix for deliverability"
I start my holiday, during which I intend to do less computer-touching, but doing some holiday-related computer-touching with my mailserver.
”Hmm.
I'm not sure offhand if (or how) it might be exploited in this case, but there are a variety of DKIM Replay Attacks related to "provocable" emails (an attacker can cause a system to generate and redirect them without limitation), and a dkim-signed vacation message to me has that smell.
Maybe you or someone #onhere better than me can say "this is fine".
Edited 1d ago