Dovecot VS CUPS

Mail server using Postfix, Dovecot, and Rspamd

Eventually I will set up Dovecot as a local IMAP server, pointing to that Maildir. When I've done this before, I've set up a self-signed certificate so Apple Mail wouldn't complain.

You might want to use dovecot for this if I understandyou correctly

If you really want to try it (and keep it up to date for security fixes, check and handle any relay issues or possible spam attackers) then look at Dovecot or Kerio

An IMAP server. I have a strong preference for dovecot for this.

I'd do it with a local IMAP server in conjunction with a webmail client that connects to it. Dovecot is a fantastic and easy to use IMAP server. Webmail clients are a pretty personal thing, but the last time I used Roundcube it seemed pretty good.

For the record, I'm using dovecot (https://www.dovecot.org/) for IMAP and Haraka (https://haraka.github.io/) for SMTP.

self hosting mail is always a pain and can take up a lot of support time and you really need to know your stuff. I always use Plesk witch configures Dovecot. But if there is anyway you can push them to use an external service you should do that.

I run a mail server on DigitalOcean for a few domains using a fairly standard FreeBSD setup running dovecot and postfix. If you're set up your preferred stack on another hosting provider before, you're aware of all the pitfalls:

If your printer for example supports IPP and Postscript or PDF then that would be possible. Higher end (commercial) HP printers usually offer this functionality. Take a look at CUPS [1] if you want to know more about IPP.

[1] https://www.cups.org/

Your best bet is to set up a print server. The support page even has a CUPS driver. CUPS is well known for supporting a lot of printers. I run it on an old Mac-mini running Ubuntu. You can run it on something as small as a Raspberry Pi.

Apple should be more open about their removals. It isn't clear how this affects their CUPS implementation or PostScript printers https://www.cups.org

CUPS is under the Apache License 2.0 , so they can just use it, if they wanted: https://github.com/apple/cups/blob/master/LICENSE

They won't of course.

CUPS printing server

Another alternative is for you to set up a print server in VLAN20. Then set up the print server to print to the printer in VLAN99. CUPS is pretty easy to set up.

But after both Apple and Linux switched their CUPS-based printing systems to Python 3 or some other breaking change that I don't mind to understand, the only way to print a document seemed to be using a PC running Microsoft Windows. So I had to save a PDF in the cloud or email it to myself, then startup Windows on a laptop physically connected to the printer, start the printing process, check if the paper has been printed successfully, and shut down Windows. What a waste of time and energy!

Another option is to set up a print server. There are free print server programs that you can run on a computer. CUPS is pretty popular. I used to run it on a Raspberry Pi for an ancient LaserJet 1012. That printer just keeps going.