# Changing "send-from" e-mail address

**URL:** <https://meta.discourse.org/t/changing-send-from-e-mail-address/299666>\
**Category:** Self-hosting\
**Tags:** email\
**Created:** [March 16, 2024, 8:26pm UTC](https://meta.discourse.org/t/changing-send-from-e-mail-address/299666 "2024-03-16T20:26:14Z")\
**Posts on this page:** 1\
**Showing post:** 12

<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:** [March 22, 2024, 9:36pm UTC](https://meta.discourse.org/t/changing-send-from-e-mail-address/299666/12 "2024-03-22T21:36:21Z")

</div>

> [@AndyBr](#):
>
> - Rebuild fails and forum is down.

You didn’t include logs, but they probably show that it failed due to lack of memory. When the rebuild fails, you can (usually) start it again with `./launcher start app`.

It’s unlikely that adding that ENV would make Discourse not work. If you messed up the formatting (which is unilkely since you got discourse-setup to make the changes), it wouldn’t take a long time.

You have lots of memory free now, but the rebuild takes a lot of memory.

If you’re changing just `DISCOURSE_NOTIFICATION_EMAIL` you can edit it with `nano` and

```plaintext
./launcher destroy app
./launcher start app

```

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