# How to leave a field empty while setting up discourse?

**URL:** <https://meta.discourse.org/t/how-to-leave-a-field-empty-while-setting-up-discourse/99095>\
**Category:** Self-hosting\
**Created:** [October 9, 2018, 12:42pm UTC](https://meta.discourse.org/t/how-to-leave-a-field-empty-while-setting-up-discourse/99095 "2018-10-09T12:42:35Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Seshank\_K](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/seshank_k/32/140017_2.png) [@Seshank\_K](https://meta.discourse.org/u/Seshank_K)\
**Post date:** [October 9, 2018, 12:42pm UTC](https://meta.discourse.org/t/how-to-leave-a-field-empty-while-setting-up-discourse/99095/1 "2018-10-09T12:42:35Z")

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![Screenshot%20(301)](https://global.discourse-cdn.com/meta/original/3X/6/c/6c90ceb6838659c099b2dc2251e11eaec03882be.png)

How to leave stmp username and pass blank. I don’t want to assign them.

While setting it for the first time I made a mistake by assigning an email address. Is there anyway to correct this by leaving it blank? And one more doubt

After I make changes to app.yml How do I save the changes?

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