smart host

  1. E

    Relay Hosts with Postfix

    Good day, I use Proxmox to server multiple email domains. I need some advise on how to go about the following using Postfix: I have 1 domain that needs to send mail to a certain host for email branding. The rest can stay as is. How would I go about setting this up in Postfix. Please note that...
  2. T

    Is Smart Host TLS SSL supported?

    Today I am using Mail Gateway for all incoming email... to my Exchange Server. For ouotgoing smtp-mail I have an smart host via TLS SSL that I have to use. Can I use Proxmox Mail Gateway as my "Smarthost"? What version of TLS is this? Is it for outgoing, incoming or both? The SSL-certificate...
  3. U

    [SOLVED] Microsoft 365 (aka Office 365) Smart Host

    The outbound smart host connector from 365 to Proxmox is failing with a Relay access denied error. All of Microsoft's IP ranges have been added as trusted networks in the following configuration location: Configuration > Mail Proxy > Networks Here are their ranges...


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!