Email Domain Authentication: Common Mistakes In Email Authentication

Last Updated: Nov 09 2017 11:01 am UTC

There are several common mistakes which occur while a domain is being authenticated; therefore, we have decided to describe them in this article to help you avoid them.

1. Adding TXT values for DKIM with spaces or additional symbols

In some cases when a TXT value for DKIM is added, it can contain spaces. Always make sure that the record for insertion doesn't have any spaces. Sometimes host panels tend to add additional symbols like '' '', if you see that these symbols or any other symbols are added please delete them, so authentication would be correct.

2. Check the TXT name for DKIM and try several additional options

When adding a TXT name please check and try several combinations of the name. Every host panel is different, therefore they have mismatched settings for the TXT name.

For example, in these ways a DKIM name can be added:

  • Full entry:
  • Entry without a dot at the end:
  • Entry without a domain: mg._domainkey.

Note: Every host panel is different, therefore you need to try several options to authenticate the domain

While the website truly is, when authenticating, add only this part of the domain - ''''. If you will add ''www'' in front of the domain, and  then click on the "Add records" button, authentication won't work.

3. Adding domain with "www" in front of the domain name

Add only:

4. Having several SPF records

This is a very common mistake, as most companies have authenticated their domain with other services as well. All SPF records must be combined into one record. When authenticating a domain with another service, their SPF records have to be integrated with the existing SPF record.

For example, you already have a SPF record:
v=spf1 mx ptr ~all

Now you need to add a second SPF record. The combination of two should look like this:
v=spf1 mx ptr ~all

Here you can learn more about combining SPF records.

5. Not using validators to check added records

DKIM and SPF validators can help you confirm if the authentication has succeeded or whether it has some kind of errors.

We suggest these validators:

DKIM validators:

SPF validator:

If you are still experiencing any troubles with your domain authentication please contact your account manager or our support team.‚Äč

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