# How to set domain value in Email -\> Server Settings
**URL:** https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902
**Category:** Self-hosting
**Created:** [June 4, 2025, 8:14pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902 "2025-06-04T20:14:18Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@sallypf](https://meta.discourse.org/u/sallypf)
#### Post date: [June 4, 2025, 8:14pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/1 "2025-06-04T20:14:18Z")
I just saw this domain value on Email Settings page, I didn’t see it during installation. Where to set this domain value?
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### Author:  [@Andrew\_Rowe](https://meta.discourse.org/u/Andrew_Rowe)
#### Post date: [June 4, 2025, 11:21pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/2 "2025-06-04T23:21:12Z")
since no one is jumping in I think it is in app.yml ???
I think there is a command line way to set your mail setting as well.
ah… look here
> [@Troubleshoot email on a new Discourse install](https://meta.discourse.org/t/troubleshoot-email-on-a-new-discourse-install/16326#p-55742-did-you-enter-email-settings-correctly-2):
>
> You just installed Discourse via [the install guide](https://github.com/discourse/discourse/blob/main/docs/INSTALL.md), but email doesn’t seem to work. Unfortunately this means you can’t log in as an admin to finalize the install. cry Let’s troubleshootize! Try the doctor woman_health_workerIf you run ./discourse-doctor it will check several ways that your mail configuration might be broken, and offer advice. Try that first. Did you enter email settings correctly? The simplest way is to run ./discourse-setup again. Did you enter everything correctly? B…
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### Author:  [@supermathie](https://meta.discourse.org/u/supermathie)
#### Post date: [June 5, 2025, 12:15am UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/3 "2025-06-05T00:15:35Z")
You almost definitely don’t need it.
It sets the EHLO domain.
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### Author:  [@sallypf](https://meta.discourse.org/u/sallypf)
#### Post date: [June 5, 2025, 10:53am UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/4 "2025-06-05T10:53:19Z")
> [@supermathie](#):
>
> You almost definitely don’t need it.
yes, I’ve already figured that out. Emails work properly. I was just wondering why it is set to this value by default? Doesn’t seem to be proper even if it doesn’t affect emails.
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### Author:  [@supermathie](https://meta.discourse.org/u/supermathie)
#### Post date: [June 5, 2025, 2:58pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/5 "2025-06-05T14:58:11Z")
> [@sallypf](#):
>
> I was just wondering why it is set to this value by default?
The default value is blank:
>
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### Author:  [@sallypf](https://meta.discourse.org/u/sallypf)
#### Post date: [June 5, 2025, 3:01pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/6 "2025-06-05T15:01:05Z")
> [@supermathie](#):
>
> The default value is blank:
As far as I can remember, I didn’t see and/or didn’t enter any such value so installation process must be filling this from somewhere? I just re-installed and still didn’t see any option to fill this field.
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### Author:  [@supermathie](https://meta.discourse.org/u/supermathie)
#### Post date: [June 5, 2025, 3:03pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/7 "2025-06-05T15:03:11Z")
It’s probably set in your container configuration file, the default contents in the template are:
```plaintext
DISCOURSE_SMTP_ADDRESS: smtp.example.com
#DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: user@example.com
DISCOURSE_SMTP_PASSWORD: pa$$word
#DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true)
#DISCOURSE_SMTP_DOMAIN: discourse.example.com # (required by some providers)
#DISCOURSE_NOTIFICATION_EMAIL: noreply@discourse.example.com # (address to send notifications from)
```
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### Author:  [@sallypf](https://meta.discourse.org/u/sallypf)
#### Post date: [June 5, 2025, 4:19pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/8 "2025-06-05T16:19:29Z")
> [@supermathie](#):
>
> It’s probably set in your container configuration file, the default contents in the template are:
Finally we found it Yay! 🙂
So how do we change it?
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### Author:  [@supermathie](https://meta.discourse.org/u/supermathie)
#### Post date: [June 5, 2025, 4:26pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/9 "2025-06-05T16:26:05Z")
> [@sallypf](#):
>
> So how do we change it?
Edit the file and change it.
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### Author:  [@Andrew\_Rowe](https://meta.discourse.org/u/Andrew_Rowe)
#### Post date: [June 5, 2025, 6:07pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/10 "2025-06-05T18:07:06Z")
from [link in post 2](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/2) above
If you change **just** SMTP settings, you can do just this to apply them without doing a full rebuild:
```plaintext
cd /var/discourse
./launcher destroy app
./launcher start app
```
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### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [July 5, 2025, 6:07pm UTC](https://meta.discourse.org/t/how-to-set-domain-value-in-email-server-settings/368902/11 "2025-07-05T18:07:39Z")
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