Okay so after multiple filter integrity issues ("X does not exist"), I opted to install a new Matomo instance, and migrated the data from old to new. It seems to be working well and passes all system checks now. I think this can be marked resolved. I still don't know how it ever got into that state, but it's good again.
the prompt that everybody confirms without even reading
haha, so true. Yeah I got a pop-up that was like "This is a new key" or something and just accepted it. Basically the same kind of message that happens with SSH. I just have certificate-based SSH though where it needs my key to even connect (i.e. you couldn't connect to my server over SSH without it), so I was surprised I didn't need that on my SFTP connection, thought I'd maybe need something similar. But I guess this makes sense then the more I think about it. Just caught me off guard. haha.
Are you aware of any method for me to determine what the receiving mail server supports for TLS protocols and cipher suites?
You can try something like openssl s_client -starttls smtp -connect server:25. Note that usually you have to do this from a real server and not from your laptop, since most residential networks will block outbound port 25.
There is also a better tool for SMTP connection testing, it's at the tip of my tongue...
Edit: gnutls-cli is the tool. It has some feature which openssl s_client does not support. I can't seem to remember what exactly.
@atrilahiji I hadn't considered the option to just install Surfer and a bunch of these apps manually coming from the App packaging perspective.
@marcusquinn It might be neat to get a list of all installed apps in Cloudron and populate them in Roam then link them to all their descriptions and various tags for speedy browsing and learning about them. Might be perfect as a New User Welcome Guide that everyone can contribute to as they learn from their path through the Cloudron experience.
@yusf Are backups failing by any chance. I wonder why there are multiple backups in a day. How often do you create backups? If it's one week backups from 17th Npv are expected. the ones which are slightly older are probably preserved for various reasons. One thing you can do is Backups -> Cleanup backup. Then in the same view, click on logs and it will tell you why each and every backup is preserved. If you paste the log, I can explain in a bit more detail.
b) some machine have a lot of memory but perform very poorly . For example, see the notes in EC2 R5 xlarge (which has 32GB RAM!) but works very poorly with docker - https://forum.cloudron.io/post/17488
Not sure, if either of those apply to you. What instance are you using ?