Cloudron 9.0.9 mail list search not working on email domain name, only members

[d19dotca]

Description

When searching the Cloudron 9.0.x mailing lists, I find that if I search by domain name, no results come up.

Steps to reproduce

Let's assume there's a mailing list of info@example.com which has some recipients on it. If I search the members/recipients, then it seems to work. However if I search by domain name (i.e. to see all mailing lists to a certain domain) such as "example.com", nothing is surfaced in the results even though I'd expect to see the info@example.com distribution list.

System Details

Cloudron Version

9.0.9

Ubuntu Version

Distributor ID:	Ubuntu
Description:	Ubuntu 24.04.2 LTS
Release:	24.04
Codename:	noble```

## Cloudron installation method

Options:
- Manual with `./cloudron-setup`

## Output of `cloudron-support --troubleshoot`

Vendor: To Be Filled By O.E.M. Product: E3C246D4U2-2T
Linux: 6.8.0-87-generic
Ubuntu: noble 24.04
Processor: Intel(R) Xeon(R) E-2288G CPU @ 3.70GHz
BIOS Intel(R) Xeon(R) E-2288G CPU @ 3.70GHz To Be Filled By O.E.M. CPU @ 3.7GHz x 16
RAM: 32588032KB
Disk: /dev/md3 689G
[OK] node version is correct
[OK] IPv6 is enabled and public IPv6 address is working
[OK] docker is running
[OK] docker version is correct
[OK] MySQL is running
[OK] nginx is running
[OK] dashboard cert is valid
[OK] dashboard is reachable via loopback
[OK] box v9.0.9 is running
[OK] netplan is good
[OK] DNS is resolving via systemd-resolved
[OK] Dashboard is reachable via domain name
[OK] Domain {redacted} is valid and has not expired
[OK] unbound is running