> Once it was approved, the spanish parliament decided to "cut" it and remove some articles (notably that of the official languages) and the spanish constitutional court declared it "unconstitutional".
I would also not like for the Catalan language to dissapear, but the above statement is false. AFAIK the only change in that regard was removing the preference of catalan over spanish, making them equal (https://www.boe.es/buscar/act.php?id=BOE-A-2006-13087&b=8&tn...). Right now both languages are equally legal and valid for both day-to-day life and official documents. As the law states you have the right to use any of them and the right and duty to learn both.
Comparing Catalan independence with Kurdish independence is a quite a stretch IMO. A more honest comparison might be Flemish or Padanian independence movements.
I run Postfix & Dovecot (with SPF, DKIM, DMARC, DNSSEC, TLS) from my home network with a remote backup just in case it goes down, as well as my own DNS servers.
I had to ask my ISP to disable some rules on their end and pay a fee to have a static IP address, but overall it was pretty painless. Though I can imagine some providers being much worse.
After the initial hurdle of setting everything up in my experience everything went mostly fine. I had to whitelist my domain on Microsoft's site, but Gmail and Yahoo worked fine from the start. I haven't had a problem since. My university teachers receive my email just fine, so did my co-workers before I was given a corporate email address.
Is it worth it? Maybe not. It was more of a learning experience for me, but I find it works just as well as any other provider I've used. At least for now.
As others have said there are lots of outdated guides. I found the Archlinux Wiki and the manpages to be the most useful resources. Also please stay up to date on the software.
I would also not like for the Catalan language to dissapear, but the above statement is false. AFAIK the only change in that regard was removing the preference of catalan over spanish, making them equal (https://www.boe.es/buscar/act.php?id=BOE-A-2006-13087&b=8&tn...). Right now both languages are equally legal and valid for both day-to-day life and official documents. As the law states you have the right to use any of them and the right and duty to learn both.