# What does DISCOURSE\_SMTP\_DOMAIN mean?

**URL:** <https://meta.discourse.org/t/what-does-discourse-smtp-domain-mean/229009>\
**Category:** Self-hosting\
**Tags:** email\
**Created:** [June 4, 2022, 1:34pm UTC](https://meta.discourse.org/t/what-does-discourse-smtp-domain-mean/229009 "2022-06-04T13:34:24Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![icaria36](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/icaria36/32/426431_2.png) [@icaria36](https://meta.discourse.org/u/icaria36)\
**Post date:** [March 20, 2025, 1:47pm UTC](https://meta.discourse.org/t/what-does-discourse-smtp-domain-mean/229009/4 "2025-03-20T13:47:42Z")

</div>

Is there a reason why this line in app.yml

`DISCOURSE_SMTP_DOMAIN: discourse.example.com # (required by some providers)`

isn’t asked during `./discourse-setup` and it isn’t commented either, introducing a false value in the configuration?

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