# Backup installation problem?

**URL:** <https://meta.discourse.org/t/backup-installation-problem/286961>\
**Category:** Self-hosting\
**Created:** [November 29, 2023, 12:17pm UTC](https://meta.discourse.org/t/backup-installation-problem/286961 "2023-11-29T12:17:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)\
**Post date:** [November 29, 2023, 3:31pm UTC](https://meta.discourse.org/t/backup-installation-problem/286961/2 "2023-11-29T15:31:07Z")

</div>

My guess is that your database has the wrong notification email address, so it’s trying to send from some address that your mail server won’t deliver for. You can do something like

```plaintext
./launcher enter app
SiteSetting.notification_email='noreply@your-valid-email-sending-domain.com'

```

See also [Troubleshoot email on a new Discourse install](https://meta.discourse.org/t/troubleshoot-email-on-a-new-discourse-install/16326)

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