DKIM Record Checker & Lookup Tool

Check your DKIM records

Check if a DKIM record is present for your domain and if you're authenticated to send email from your email provider or marketing and delivery platform.

What Are DKIM Selectors?

A selector is a text string at the beginning of your DKIM TXT or CNAME record host/name used to identify or point to a specific DKIM public key.

Common DKIM Selectors

DKIM selectors are specific to each mail provider or marketing platform and set up by domain owners to enable DKIM authentication.

Email Providers

Provider DKIM Selector
Gmail google
Yahoo Mail yahoo
Outlook (Microsoft 365) selector1, selector2
AOL Mail dkim
Apple Mail (iCloud) apple
FastMail fm1
Zoho Mail zoho

Email Marketing & Delivery Platforms

Platform DKIM Selector
MailChimp k1, k2, k3
SendGrid s1, s2
Constant Contact ctct1, ctct2
HubSpot hubspot
Campaign Monitor cm1, cm2
AWeber aweber
ActiveCampaign activecampaign
MailerLite litesrv
Mailgun smtp

Why DKIM Matters?

Boosting email success, from delivery to profits.

Let's chat about something that might seem a bit technical but holds the key to making your emails truly shine: DKIM. In the world of email, DKIM (DomainKeys Identified Mail) is like that trustworthy friend who vouches for you at a party, except it's for your emails in the vast digital universe.

So, why does DKIM matter so much? In a nutshell: it's your ticket to making sure your emails land where they should, get opened, and help you grow your business. Imagine sending out a fantastic offer, an important update, or a must-read newsletter. You want your recipients to not just receive it, but to trust it and actually take action. That's where DKIM steps in.

Picture this scenario: you're getting emails from an online store you love, but suddenly, a suspicious email arrives claiming to be from the same store. You're hesitating, right? Is it real or a phishing attempt? DKIM comes to the rescue by putting a digital seal on your emails. This seal tells the receiving email servers, "Hey, this email is legit! It's really from the sender it claims to be, and no one messed with its content along the way." Trust restored!

Now, let's talk cold, hard numbers. You know that feeling when you send out an email campaign, pour your heart into it, and then... crickets? Yep, that's where DKIM works its magic again. Email providers see your DKIM-signed emails as credible, which means they're less likely to throw them into the dreaded spam folder. Better deliverability equals better open rates, clicks, and yep, you guessed it—more chances for your audience to buy, subscribe, or engage.