ssmtp is also my go-to for this. Or dma (DragonFly Mail Agent) - if available - which provides a queue in case the delivery to the smarthost fails. But as it's not running as a daemon (saving resources), so you have to setup a regular cronjob to process the queued messages.
mbirth
Yep, pretty accurate.
I just have Watchtower stopped and configured in "one-shot" mode sitting on all my Docker hosts. And when I'm in the mood of updating and fighting with possible issues, I just run it. Works much better for me than some update notification popping up in the worst possible moment, me dismissing it and then forgetting about it. 🤣
I also had an ejabberd running for my family. Configured all the XEPs that take it into the current century. Had Conversations as a client for Android and Monal on iOS. No problems at all - apart from Monal being a bit wonky at times. But I assume these bugs are all fixed by now.
Also, Conversations is THE XMPP client. The guy behind it is involved in lots of XMPP stuff. And Monal tries to be the same for the iOS world.
But similarly, we all switched to Telegram over time as that's where my parent's friends are, too.
Yes, and this can be paired with a self-hosted mail server, too.
the power lights are on the left while the wholes on the case are on the right, so with the Pi2 you don’t see the green/red light
That's not true. The case has holes on both sides as can be seen here:
Ha, you're correct. Mine also never went over 45 ℃.
Geekworm Pi 3 case (also fits Pi 2)
I've also ordered some extra strips of cooling pads and added them to the bottom side of the CPU and the RAM chip beneath - so that heat gets sent to the case as well.
I prefer the Geekworm and similar cases. They have ribs for better heat dissipation. Even under full load I get my Pis barely over 60℃.
Maybe find an online print shop that does professional book printing? I've just clicked the first result from a quick Google search and https://mixam.co.uk/paperbackbooks can do 944 pages, A4, Silk, 115gsm for about £50. Or 800 pages on Uncoated, 100gsm paper for £45. For thinner paper they need to use a Lithography machine instead of their normal printer, it seems. That's why the price jumps to £3k+ for those. I don't think they care much about WHAT you want to have printed.
Conversations on Android looks and feels like any other modern messenger and supports basically all the XMPP features there are. And I found Monal on iOS to be pretty usable as well, when I tested it 3 years ago.