[SOLVED] Configure proxmox to use (external) smtp server

[EDIT] SOLVED, BY USING THIS FANTASTIC POST: https://forum.proxmox.com/threads/get-postfix-to-send-notifications-email-externally.59940/

Hey all, new to proxmox, so please forgive me my basic questions. I use proxmox on my home-server, so no professional use here. I have one thing left to configure: using an external smtp server for outgoing mails from the proxmox server. I could use some help with that.

  • First of all, is this the right command to "trigger" an email from the proxmox host? "echo "test mail from proxmox" | mail -r my@email.com -s test my@email.com"?
  • When I try this, I see below warnings in the syslog
  • It looks like proxmox is using a (derived?) email server from my dns provider, but it has no access
  • Therefore I want to tell proxmox that it should use a specific smtp server. I have these details:
    • smtp server hostname + port
    • username, password
    • TTL settings
Basically my question is: how do I do this??

Warnings in syslog:
May 29 10:22:14 pve postfix/smtp[11269]: C07D580D37: to=<xxxx@xxxx>, relay=none, delay=428789, delays=428638/0.01/150/0, dsn=4.4.1, status=deferred (connect to in1-smtp.messagingengine.com[]:25: Connection timed out)
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