PMG with multiple relay hosts.

[scoolplace]

Hello proxmox community.
i have managed to install and configure my first pmg.
Also successfully managed to send my incoming/outgoing mail traffic from a webserver to pmg. All seems to run well and smooth.

Now, i need to add more servers to send their outgoing mail traffic to this pmg.
Is this possible? because pmg only supports one default relay.
I suppose it is possible, i just need to point me to the right direction.

Thank you.

 

[scoolplace]

My goal is to route outgoing/incoming mail traffic from 3 different webservers (with multiple domains hosted) into the pmg

 

[Stoiko Ivanov]

I'm not sure I understand your question completely...
* But yes you can route outgoing mail-traffic from your webservers into PMG -you need to configure your webservers to use PMG as their smart_host (or default mailrelay)
* Yes you can also use PMG to scan incoming mails for certain domains: just let the MX-record of those domains point to PMG's IP-address and setup the transports for those domains in PMG to the respective server, which should receive mail for the domain

Please check out the reference documentation: https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html

I hope this helps!

 

[scoolplace]

Thank you for your reply.
I understand that the default relay is the only server that can send traffic to pmg.
Outgoing email traffic will be scanned for spam and viruses i suppose.

 

[Stoiko Ivanov]

I don't quite get your question:
* The default relay for PMG is the traffic PMG sends its traffic to!
* any server (inside the trusted networks) can send traffic to PMG
* if you want to scan outbound mails you should configure your servers to send to PMG's internal port

please read the documentation - it is quite well explained there.

 

[sarathi]

Hi i too want to set up multiple relay host in proxmox mail gateway
Is that possible :
Default Relay is accepting only one IP entry.
I wish to send my domain mails to multiple hosts.

 

[sarathi]

Solved It.
in default relay host made an entry with name instead of IP and added two MX records for the host name.

 

[ivn]

Is adding dns name as relay host actually working? I mean if one of it's IP addresses is offline, will PMG try to relay mail to another IP?

 

[Stoiko Ivanov]

Is adding dns name as relay host actually working? I mean if one of it's IP addresses is offline, will PMG try to relay mail to another IP?

if you have one DNS name with 2 A records and one of them is not reachable postfix should try to directly connect to the other

However it's always best to actively try those things and watch the logs - that way you get a feeling how it's working in practice

I hope this helps!