--- title: "DNS Migration to Cloudflare | DuoCircle" description: "We anticipate that the DNS migration to Cloudflare on July 20th, 2019 will be uneventful." image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/blog/announcements/dns-migration-to-cloudflare/" --- Quick Answer DuoCircle migrated its DNS to Cloudflare on 20 July 2019\. The migration was supported by DNS redundancy across multiple top-level domains for MX records, a setup recommended to customers since 2016 so mail flow survives a TLD outage. If the migration affected delivery, customers can update MX records by service type. For Email Gateway, Email Forwarding, and Phishing Protection: MX 10 the customer's custom MX record (from the customer portal) or mx1.mailhop.org, MX 20 mx1.mailhop.us, MX 30 mx1.mailhop.co, MX 40 mx1.mailhop.co.uk. For Backup MX: MX 5 the customer's current mail server, MX 10 mx2.mailhop.org or the custom MX, MX 20 mx2.mailhop.us, MX 30 mx2.mailhop.co, MX 40 mx2.mailhop.co.uk. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Fannouncements%2Fdns-migration-to-cloudflare%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=DNS%20Migration%20to%20Cloudflare&url=undefined%2Fblog%2Fannouncements%2Fdns-migration-to-cloudflare%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Fannouncements%2Fdns-migration-to-cloudflare%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Fannouncements%2Fdns-migration-to-cloudflare%2F&title=DNS%20Migration%20to%20Cloudflare "Share on Reddit") [ ](mailto:?subject=DNS%20Migration%20to%20Cloudflare&body=Check out this article: undefined%2Fblog%2Fannouncements%2Fdns-migration-to-cloudflare%2F "Share via Email") ![DNS Migration to Cloudflare](https://media.mailhop.org/duocircle/images/2019/07/SMTP-relay-2522.jpg) We anticipate that the DNS migration to Cloudflare on July 20th, 2019 will be uneventful, however in the event that there is an issue we have incorporated DNS redundancies into your email services. Starting in 2016 we began recommending that all of our customers utilize DNS redundancy on multiple Top Level Domains () for their MX records. With these records are in place, even the failure of the .org domain would not have an impact on mail flow. However, if you are reading this, chances are that there was an issue with the migration. Please update your MX records based on the type of service you have: \*\*Email Gateway / Email Forwarding / Phishing Protection \*\*MX 10 Your custom MX Record (from customer portal) or mx1.mailhop.org MX 20 mx1.mailhop.us MX 30 mx1.mailhop.co MX 40 mx1.mailhop.co.uk \*\*Backup MX \*\*MX 5 Your current mx record, this is your current email server MX 10 Your custom MX Record (from customer portal) or mx2.mailhop.org MX 20 mx2.mailhop.us MX 30 mx2.mailhop.co MX 40 mx2.mailhop.co.uk ![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) Brad Slavin General Manager General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio. ## Secure your email infrastructure Protect, authenticate, and deliver. Contact our team to find the right solution. [Contact Sales](/contact/) [Explore Products](/products/) ## Related Articles [ News 3m Alert: Fix SPF & DKIM Settings For Your Email Forwarding Set Up Through Microsoft o365 SMTP Server Or Your Emails May End Up In Spam Jul 20, 2021 ](/blog/announcements/alert-fix-spf-dkim-settings-for-your-email-forwarding-set-up-through-microsoft-o365-smtp-server-or-your-emails-may-end-up-in-spam/)[ News 1m April Spam Filtering Uptime Report May 4, 2016 ](/blog/announcements/april-spam-filtering-uptime-report/)[ News 2m Changes to Spam Filtering Technology Feb 8, 2023 ](/blog/announcements/changes-to-spam-filtering-technology/)[ News 4m Cyber Security News Update, Week 1 of 2020 Jan 3, 2020 ](/blog/announcements/cyber-security-news-update-week-1-of-2020/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. 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