### Author:  [@rab-bits](https://forum.yunohost.org/u/rab-bits)
#### Post date: [July 8, 2025, 9:52am UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/1 "2025-07-08T09:52:50Z")
I installed listmonk on [maillist.example.org](http://maillist.example.org), following the instructions for listmonk, but they did not function.
## The instructions:
Visit Settings → General and replace these values:
```
Root URL: https://maillist.example.org
Default from email: listmonk listmonk@maillist.example.org
```
Visit Settings → SMTP and replace with these values:
```
Host: localhost
Port: 25
Auth protocol: PLAIN
User: listmonk
Password: 5fd255299ef3fbcb896d0d22
HELO hostname: maillist.example.org
```
## Then, test the connection
However, this does not work. You get following error:
SMTP AUTH extension not found
But, if you choose
Auth protocol: None
you may send testmail, IF you are logged in as listmonk. Else you get:
```
553 5.7.1 : Sender address rejected: not logged in
```
But, you may send a testmail if you have been logged in as admin and change:
```
Default from email: listmonk admin@maillist.example.org
```
Usually, you would not prefer to send from [xxxx@maillist.example.org](mailto:xxxx@maillist.example.org), but from [xxxx@example.org](mailto:xxxx@example.org). Hence, it is preferable to change to:
```
Root URL: https://example.org
Default from email: listmonk admin@example.org
```
To conclude: It looks like the instructions are not good enough.
---
### Author:  [@ericg](https://forum.yunohost.org/u/ericg)
#### Post date: [July 8, 2025, 10:58am UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/2 "2025-07-08T10:58:46Z")
The app is open to PR to improve instructions
---
### Author:  [@rab-bits](https://forum.yunohost.org/u/rab-bits)
#### Post date: [July 8, 2025, 12:38pm UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/3 "2025-07-08T12:38:04Z")
how?
---
### Author:  [@LautreG](https://forum.yunohost.org/u/LautreG)
#### Post date: [July 22, 2025, 4:25pm UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/4 "2025-07-22T16:25:11Z")
I tried to use the “tip” but didn’t worked.
But, I not really checked how my Yunohost can send emails, because I have a server for emails.
I use Virtualmin on another VM, and I configured the “smtp” tab with the server smtp name, login and password. Worked fine
Of course, there is several tab to configure.
---
### Author:  [@rab-bits](https://forum.yunohost.org/u/rab-bits)
#### Post date: [August 21, 2025, 7:54am UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/5 "2025-08-21T07:54:24Z")
Listmonk seems to work, but it seems that postfix will not accept any “default from email” (settings \> general). As to my experience it works with: some-name \ and Root URL: [https://yourdomain](https://yourdomain). If you use a ‘wrong’ from-email (you may change some-name) then the logs (settings \> log or /var/log/mail.log) will say “Sender address rejected: not logged in”. I haven’t trailed-and-errored enough to tell more exactly which from-emails are allowed.
---
### Author:  [@okam\_rzr](https://forum.yunohost.org/u/okam_rzr)
#### Post date: [October 4, 2025, 5:24pm UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/6 "2025-10-04T17:24:08Z")
Just installing this for the first time, and following the post install config.
Testing SMTP connection is failing, so further clarifications needed:
I’m assuming here that the post-install notes referencing [listmonk@mysite.com](mailto:listmonk@mysite.com) means that I don’t need to manually create this address (yunohost user).
It also isn’t clear what settings should come after the HELO hostname.
With TLS set to STARTTLS, i get the following error
> tls: failed to verify certificate: x509: certificate is valid for domain.tld, not localhost
If I set Host to `mysite.com`
> 535 5.7.8 Error: authentication failed: (reason unavailable)
With Host set to `localhost` and Skip TLS verification enabled, then I get:
> 451 4.3.0 [listmonk@list.mysite.com](mailto:listmonk@list.mysite.com): Temporary lookup failure
---
### Author:  [@rodinux](https://forum.yunohost.org/u/rodinux)
#### Post date: [October 5, 2025, 8:19pm UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/7 "2025-10-05T20:19:33Z")
I have listmonk working… so we have added a user yunohost `listmonk_sender` with the mail `listmonk_sender@list.domain.tld` and in the dongle SMTP:
Host : `list.domain.tld`/ Port 587
PROTOCOL : Login / Name User : listmonk\_sender /password : xxxxxxxxxxxxxxxxx
Name Host Hello : / TLS : STARTSSL
Max Nb connexion : 10 / resend tentatives : 2 / Delay inactivity : 15s / Delay queue : 5s
But is not for a big usage…
---
### Author:  [@rodinux](https://forum.yunohost.org/u/rodinux)
#### Post date: [October 5, 2025, 8:37pm UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/8 "2025-10-05T20:37:43Z")
Be careful also if there a page to subscribe to newsletter, you could be attacked by spams robots… we have added a captcha, we have create an account with [hcaptcha.com](http://hcaptcha.com) and in admin settings you can configure this account…
---
### Author:  [@nqo](https://forum.yunohost.org/u/nqo)
#### Post date: [August 23, 2026, 2:08am UTC](https://forum.yunohost.org/t/listmonk-instructions-are-not-good-enough/37665/10 "2026-08-23T02:08:03Z")
Hello all
Thank you for your contributions here, they got Listmonk working for me!
I did one additional step and will clarify important steps below, too:
- log in to Listmonk using listmonk Super Admin user details provided after install
- in listmonk admin panel, set:
- host (mydomain)
- port (587)
- add admin user on Yunohost admin panel (newslettersender@mydomain)
- add Super Admin user on Listmonk admin panel (newslettersender@mydomain) ie same credentials as on Yunohost admin
- Enter details of this new user in:
- Admin general settings \> Default sender
- SMTP settings \> username and password
- TLS (STARTTLS)
if you have different email addresses in the two different sections of admin, even if they are both Super Admin accounts and even if they are both Yunohost user admin accounts, it doesn’t work.
Also, if you aren’t logged in as the original admin user provided after install, it won’t work, even if you are logged in as another super admin user.
I am happy to put in PR in the documentation for updating instructions. Is there anything anyone wants to add though?
It would be lovely if one day these instructions are clear from many perspectives of different users.