I have 5 servers in total. All except the iMac are running Alpine Linux.

Internet

Ziply fiber 100mb small business internet. 2 Asus AX82U Routers running in AiMesh.

Rack

Raising electronics 27U rack

N3050 Nuc’s

One is running mailcow, dnsmasq, unbound and the other is mostly idle.

iMac

The iMac is setup by my 3d printers. I use it to do slicing and I run BlueBubbles on it for texting from Linux systems.

Family Server

Hardware

• I7-7820x
• Rosewill rackmount case
• Corsair water cooler
• 2 4tb drives
• 2 240gb ssd
• Gigabyte motherboard

Mostly doing nothing, currently using it to mine Monero.

Main Cow Server

Hardware

• R7-3900XT
• Rosewill rackmount case
• 3 18tb drives
• 2 1tb nvme
• Gigabyte motherboard

Services

• ZFS 36TB Pool
• Secondary DNS Server
• NFS (nas)
• Samba (nas)
• Libvirtd (virtual macines)
• forgejo (git forge)
• radicale (caldav/carddav)
• nut (network ups tools)
• caddy (web server)
• turnserver
• minetest server (open source blockgame)
• miniflux (rss)
• freshrss (rss)
• akkoma (fedi)
• conduit (matrix server)
• syncthing (file syncing)
• prosody (xmpp)
• ergo (ircd)
• agate (gemini)
• chezdav (webdav server)
• podman (running immich, isso, peertube, vpnstack)
• immich (photo syncing)
• isso (comments on my website)
• matrix2051 (matrix to irc bridge)
• peertube (federated youtube alternative)
• soju (irc bouncer)
• xmrig (Monero mining)
• rss2email
• vpnstack
  • gluetun
  • qbittorrent
  • prowlarr
  • sockd
  • sabnzbd

Alpine Linux edge

IP changes are not your concern. It is likely that your ISP blocks outgoing port 25, you can check with nc gmail-smtp-in.l.google.com 25 and if you don’t get any output its blocked. If you don’t have very many users on your Pterodactyl server, I would suggest just using a gmail account with SMTP in pterodactyl. If you have port 25 unblocked and want to selfhost email, mailcow is a great option and really easy to set up.