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Update dns_records_and_underscores.md #1896

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Update dns_records_and_underscores.md #1896

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9 changes: 7 additions & 2 deletions source/Classroom/Troubleshooting/Authentication/dns_records_and_underscores.md
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---
st:
published_at: 2016-06-09
type: Classroom
seo:
title: DNS records and underscores
description: DNS records and underscores
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show: true
---

Some DNS providers do not support underscores in zone file entries, however an underscore is required in the DKIM TXT entries outlined in the [Whitelabel Wizard](http://docs.sendgrid.com/documentation/get-started/whitelabel-wizard/).
Some DNS providers do not support underscores in zone file entries, however an underscore is required in some DNS entries outlined in the [Whitelabel]({{root_url}}/User_Guide/Settings/Whitelabel/index.html) process.

If your provider does not allow you to use underscores, you need to consider changing DNS hosting providers if you want to take advantage of the Whitelabel feature.
If your provider does not allow you to use underscores, you may need to consider changing DNS hosting provider if you want to take advantage of the Whitelabel feature.

Alternatively, disabling [Automated Security]({{root_url}}/Classroom/Deliver/Sender_Authentication/what_is_automated_security_in_the_whitelabel_settings.html) when Whitelabeling will remove the need to set up the CNAME records with underscores in them that can cause this issue initially.