DKIM and SPF authentication

DKIM and SPF authentication is used as a way of checking if incoming emails are spam or from a fake address or sender. It’s a way of protecting the recipient. If an email fails these checks it’s likely to end up in the spam or junk mail folder. Follow this guide to authenticate your domain.

Increase the chance of getting your email through
By authenticating your domain you increase your chances of reaching through and getting your email read.

Read this first

Firstly, it’s important to establish that you don’t have to do it. If you don’t want to, your emails will continue to be sent from Minutemailer’s servers as they’ve always been.

You’ll also need to make some account changes with the DNS settings of your provider. If you don’t know who provides your DNS settings, get in touch with your hosting supplier.

There are a few hosting suppliers that don’t support custom authentication, if this is the case and you do want to authenticate your domain it might be worthwhile changing to a supplier that does.

If you’re not sure about any of this and have an IT contact who can lend a hand, drop them a line and share this link with them.

The tasks you’re about to do

To authenticate your domain you’re going to need to do a little copying and pasting from Minutemailer into your domain provider’s zone editor or cPanel, as it’s sometimes called. You’re also going to need to complete a couple of tasks in Minutemailer. Here’s a quick overview of the process you’ll do:

  1. Verify your domain on
  2. Copy and paste three bits of information from Minutemailer to your Domain provider’s control panel or settings

The easiest way to do all this is open Minutemailer in one browser tab, and your cPanel or zone editor in another. Then just switch from one to the other.

1. Verify your email domain on

Before you do anything, you’ll need to verify your domain in Minutemailer’s settings. If you’ve signed up properly, you’ve probably already done this by responding to the email we send all our new users.

Once you’ve done that head to Settings again and select the Email tab. Scroll to the bottom of the page and click the Authenticate domain button. Read the blurb and hit Authenticate domain.

Example of DNS records that you should copy and paste to edit your domain’s DNS record.

2. Copy and Paste your DNS settings

In your domain’s settings/control panel you’re going to want to “add a dns record” (the phrasing varies from domain supplier to supplier). Once you’ve found it and clicked it, return to Minutemailer.

In the Minutemailer pop-up you’ll see three columns. Host, Type and Value.

  1. Type will normally be a dropdown menu in your domain’s settings. Set that too CNAME.
  2. In your domain’s Host box, copy and paste the text in the first line of the Minutemailer pop-up Host column.
  3. In the Value box, copy the text in the first line of the Value column.
  4. Click add/save/done once all three fields have been changed or edited.
  5. Repeat steps for the remaining two lines in Minutemailer’s pop-up box saving after each new record is created.
  6. Return to Minutemailer and hit done and give yourself a pat on the back. It can take up to 48 hours for the changes to kick in, you’ll see ‘Authenticated’ in your Minutemailer Email Settings when everything’s complete.
It should look like this when everything is set.

Need help?

We answer all emails as soon as possible. Thanks for your patience.

Guides & How-to

Start free account