Here is a guide on how you can check your MX records and configure them if they are not set.
Most common issues with MX records
They are absent.
They route to your old mail provider while you have switched to a new one.
They are incorrect or route to two different mail providers.
How to check your MX records
Use any MX lookup online tool, for example:
To double-check and confirm the issue, you can also send an email from any other address to your business email. If you don't receive any emails, this can be a sign of an issue.
Note:
It's important to distinguish between terms such as mail provider (service) and hosting provider (service).
Most common hosting providers:
Namecheap
GoDaddy
1&1 IONOS
OVH
Cloudflare
Google Domains
*Some hosting providers also offer email services.
Most common email providers:
Google Workspace
Office 365
Zoho
GoDaddy Mail
Namecheap Mail
Correct Google Workspace MX Record Values
Your MX records will differ depending on when you signed up for Google Workspace. Typically, MX setup is performed as one of the steps during the sign-up process.
However, if you've missed this step, you can find the correct values in the following article
How to add them to your hosting website
Some hosting providers, such as Namecheap, have a pre-set of Gmail MX records.
Navigate to Domains -> select your domain -> Manage -> Advanced DNS, and scroll down to Mail settings:
If you use any other hosting provider
Check out Google workspace guide for different hosting providers: