DNS: The Single Source of Truth

The DNS database is a basic infrastructure of the internet, allowing systems to lookup records about each other and make trusted connections.

Specific DNS Providers (11)
Checking consistency of DNS Servers
All domains will have at least two DNS servers associated with the domain. Many domains will have more than two. The DNS data on all servers for a domain ne...
Tue, 21 Apr, 2020 at 9:37 AM
Deliverability Advice Questions
Valimail Support occasionally receives questions about advice on deliverability for specific marketing or general email tools. Domains that are at DMARC...
Thu, 10 Jun, 2021 at 7:13 AM
DMARC/DKIM NS Records: Why You Shouldn't Be Concerned
This article is intended for customers using the paid products Enforce and Align. Summary A standard Valimail customer engagement requires that the c...
Tue, 13 Feb, 2024 at 12:52 PM
Email authentication for multiple DNS views
Many companies will configure their DNS to have multiple DNS Views. A DNS view is a copy of one or more DNS zones that is only accessible to a specified set...
Tue, 30 May, 2023 at 10:01 AM
Legal Characters in DNS
The Domain Name System consists of domain names, as the name suggests. The DNS standards, as updated in RFC 2181, clarifies that there are only two restrict...
Mon, 6 Apr, 2020 at 11:18 AM
My DNS provider doesn't allow creation of NS records. What workarounds are possible?
If you previously received instructions to create an NS record in order to connect to Valimail Monitor, please refer to the following instructions instead: ...
Mon, 27 Jun, 2022 at 12:34 PM
Understanding the DNS resolution path
When troubleshooting an issue with DNS, it is often helpful to understand what DNS servers are involved in resolving a query. Dig allows you to see this usi...
Tue, 21 Apr, 2020 at 9:45 AM
Valimail DNS Downtime
What happens if Valimail’s DNS service is unavailable If there is a problem with the Valimail platform it "fails open". This means that in the...
Tue, 26 Oct, 2021 at 10:27 AM
Why do some DNS providers not allow Valimail’s NS delegation for DMARC and DKIM?
The Valimail DMARC and DKIM configuration are standard DNS delegations and are supported by any DNS server. Some DNS providers, typically those focussed on ...
Mon, 6 Apr, 2020 at 12:54 PM
Why it's safe to point SPF/DKIM/DMARC to Valimail
Hosting these records to help customers is the core of our business. Valimail does not host your entire DNS. We only host SPF, DKIM and DMARC records a...
Fri, 5 Nov, 2021 at 5:31 PM