Hi there, I went through the various tutorials and installation instructions and have my KumoMTA system working on Rocky Linux 8.9 and I can send emails to it for dispatch. I’ve been watching the queue filling up with emails, but they are just sitting there. The queues are not emptying and dispatching the emails through SMTP.
I am not sure what to provide in regards to my setup, but if anyone can help I’d greatly appreciate it. I feel like I’m at the finishing line, and I just can’t get over it. Everything else is done - DKIM signing, etc. Just not exactly sure I’m getting the gist of what I’m missing. The installation is very vanilla, and I’m only looking for low volume here (ie. 1 pool) and it runs on a very simple server. I tried to view the logs and they are all binary, and even after installing tools to try and read it, that didn’t work either.
Anyway can anyone point me in the right direction of what to check here?
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Yes, for some reason it didn’t work. I think I have some Python issues. But having said that, if I review the journalctl logs, I just found something that could be the issue. it appears to want to send the email, but at the very end of the debug log - when I see it resolving DNS to the destination MX server, it shows “failed: invalid peer certificate: Other (UnsupportedCertVersion)”. Any idea what that could be from?
Sharing your configs as requested above would be helpful but I am guessing you have TLS configured but the cert either has permission issues or it is not referenced properly.
Unfortunately my server isn’t http facing the Internet - I have a second server for that. Only port 25 is exposed on it. I think trying to automate certbot renewal is going to be an issue.