Outbound IP address using IP Pools

[danielpotthast]

Hello,

I've setup a virtual postal server (default server IPv4: 1.1.1.1, IPv6: 1:1:1:1::1) with two organizations.
Each organization should have its own IPv4 / IPv6 address for outbound email traffic.
They are already configured and assigned to the host system (Debian 10).

Network interfaces:

ip addr
1: lo: …
2: eth0: (…)
    inet 1.1.1.1/32 (…) eth0 (…)
    inet 2.2.2.2/32 (…) eth0:1 (…)
    inet 3.3.3.3/32 (…) eth0:2 (…)
    inet6 1:1:1:1::1/64 (…)
    inet6 2:2:2:2::1/64 (…)
    inet6 3:3:3:3::1/64 (…)

IP Pools Configuration (/ip_pools):

• Organization A: IPv4: 2.2.2.2, IPv6: 2:2:2:2::1, Hostname: postal.organization-a.com, Prio: 100
• Organization B: IPv4: 3.3.3.3, IPv6: 3:3:3:3::1, Hostname: postal.organization-b.com, Prio: 100

Organization Configuration:

• Organization IPs (/org/organization-a/ip_pools): IP Pool 'Organization A' is checked
• Organization IPs (/org/organization-b/ip_pools): IP Pool 'Organization B' is checked

When sending a test mail from 'Organization A Mail-Server' I would expect an email from 2.2.2.2 / 2:2:2:2::1, but it's delivered via 1:1:1:1::1.

Did I miss a configuration step?

Thank you! 🙏

[danielpotthast]

Okay, after some trial & error and with the help of discussion #1444, I found the solution:

After setting up the IP Pools, you need to go to the server settings (/org/organization-a/servers/test-mail-server/edit) and simply click 'Save server' (without any changes). This saves the correct server-ip_pool_id to the MySQL database and fixes the outbound ip address issue.

[willpower232]

thanks for your research, interesting issue