Google Domain Setup
Introduction
Setting up custom domains with Mailgun can be a bit challenging for some users. This guide aims to simplify the process, using a video tutorial as a reference. By the end, you'll have a clear understanding of how to set up Mailgun custom domains, particularly with Google, though the principles can be applied to any DNS provider.
Overview
The process involves:
Logging into Mailgun and your DNS provider (Google in this example).
Creating a subdomain in Mailgun.
Adding the necessary DNS records in your DNS provider.
Verifying the DNS records in Mailgun.
1. Sign up for Mailgun.com
2. Check your email inbox to verify the email address
3. Login to Mailgun, Click on Sending > Add New Domain
4. If your domain is companyname.com, you can either set up the main domain or subdomain with Mailgun.
A. Main domain:
If you are adding the main domain, it should not be used with Gsuite, or any other email provider
Subdomain:
To set up the subdomain with Mailgun, you can type ANYTHING_HERE.companyname.com
Examples:
mg.companyname.com
replies.companyname.com
support.companyname.com
B. Please set up the domain or subdomain under US, not EU. not EU. not EU.
C. Click on Add domain
5. Now log in to your DNS records based on where you get the domain and add the 5 DNS records
Log in to domains.google.com
Click into the domain you are trying to set up
Click DNS on the left panel, we are going to add 5 DNS records
Copy the first TXT record here v=spf1 include:mailgun.org ~all
To add the 1st TXT record
Host name:
Depending on the subdomain you are trying to set up, if you are trying to set up
mg.companyname.com The host name will be mg
replies.companyname.com The host name will be replies
If you are setting up a main domain like companyname.com, the host name will be @
Type: Select TXT from the dropdown
Data: we will paste the first copied TXT record here v=spf1 include:mailgun.org ~all
Don't click save yet, 4 more new records to add
Once you are done with the 1st record, click Create new record
To add the 2nd TXT record
Host name:
it's a bit tricky but the key here is to copy everything from the beginning until the subdomain part, do not copy the main domain
Examples: copy the highlighted part
Example 1 using subdomain
Example 2 using main domain:
Type: Select TXT from the dropdown
Data: we will paste the second long TXT record here
To add the MX records, click Create new record
Host name:
Depending on the subdomain you are trying to set up, if you are trying to set up
mg.companyname.com The host name will be mg
replies.companyname.com The host name will be replies
If you are setting up a main domain like companyname.com, the host name will be @
Type: Select MX from the dropdown
Data: paste the following data
Copy and paste 10 mxa.mailgun.org
Click +Add more to this record
Copy and paste 10 mxb.mailgun.org
To add the CNAME record, click Create new record
Host name:
Depending on the subdomain you are trying to set up, if you are trying to set up
mg.companyname.com The host name will be email.mg
replies.companyname.com The host name will be email.replies
If you are setting up a main domain like companyname.com, the host name will be email
Type: Select CNAME from the dropdown
Data: copy and paste mailgun.org
Now that you have added 5 DNS records, click SAVE!
Go back to Mailgun and click Verify DNS Settings
Click the same button to Verify DNS Settings again if some records are still not showing the green checkmark
Conclusion
Setting up custom domains with Mailgun is a straightforward process once you understand the steps. This guide, combined with the video tutorial, should provide you with all the information you need to successfully set up your custom domain. Remember, while this example used NameCheap, the principles remain the same for other DNS providers.
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