# IT Resources

IT Resources for setting up Internal Communications

By Marisa1 author11 articles

- [Using a Custom Domain: Send Internal Communication emails from your company’s domain. DNS Settings.](https://help.nectarhr.com/en/articles/9623711-using-a-custom-domain)
- [How to Update Exchange Rules When Nectar Emails Are Flagged as External: If you are having trouble with communication emails being flagged as external, follow these steps](https://help.nectarhr.com/en/articles/12634967-how-to-update-exchange-rules-when-nectar-emails-are-flagged-as-external)
- [Message Sanitization in Mimecast: Mimecast may 'sanitize' erroneous characters that are crucial to the appearance of HTML based email.](https://help.nectarhr.com/en/articles/10011489-message-sanitization-in-mimecast)
- [Anti-Spoofing in Mimecast: This article will guide you or your technical team through bypassing this Mimecast policy.](https://help.nectarhr.com/en/articles/10011478-anti-spoofing-in-mimecast)
- [URL Protection in Mimecast: This article will guide you or your technical team through bypassing this Mimecast policy.](https://help.nectarhr.com/en/articles/10008760-url-protection-in-mimecast)
- [CyberGraph in Mimecast: This document will help walk you through how to create a bypass policy for the CyberGraph service within Mimecast](https://help.nectarhr.com/en/articles/10008752-cybergraph-in-mimecast)
- [How to configure non-throttled hosts in ProofPoint: This document will help provide guidance on configuring non-throttled hosts within ProofPoint](https://help.nectarhr.com/en/articles/10008750-how-to-configure-non-throttled-hosts-in-proofpoint)
- [Impersonation Protection Bypass Policy - Mimecast: This article will guide you or your technical team through bypassing this Mimecast policy.](https://help.nectarhr.com/en/articles/10008741-impersonation-protection-bypass-policy-mimecast)
- [Safelisting Nectar's IPs in ProofPoint: To ensure that all emails created and sent through Nectar pass through ProofPoint we need you to safelist our IP addresses.](https://help.nectarhr.com/en/articles/10011511-safelisting-nectar-s-ips-in-proofpoint)
- [Permitted Senders in Mimecast: This article will guide you or your technical team through bypassing this Mimecast policy.](https://help.nectarhr.com/en/articles/10011530-permitted-senders-in-mimecast)
- [Safelisting Nectar's IPs in Barracuda: To ensure that all emails created and sent through Nectar pass through Barracuda we need you to whitelist our IP addresses.](https://help.nectarhr.com/en/articles/10011539-safelisting-nectar-s-ips-in-barracuda)