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

R

rogierl

Active Member
Proxmox Subscriber
May 23, 2021
66
13
28
44
Netherlands
rogier.lommers.org
[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:
Code: 
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[66.111.4.72]:25: Connection timed out)
 
Last edited:
  • Like
Reactions: meichthys
KB8DOA said:
this is marked Solved - but I do not see what the resolution was?
I have the same question
Click to expand...
Old thread, but if others have same issue, there is an edit at the top of OP, with a link to:
S

[TUTORIAL] Thread 'Get Postfix to Send Notifications (Email) Externally'

I'm not sure I did this in the proxmox way but I couldn't get email to relay to me and some posts were dated or didn't work for me, so I did the following:

Gmail for example:

Change /etc/postfix/main.cf to include/change these lines:
Code: 
relayhost = [smtp.gmail.com]:587
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt

#mydestination = $myhostname, localhost.$mydomain, localhost

Be sure there are no dupes as the main.cf may have...
  • Like
 
You must log in or register to reply here.
Top Bottom