How to get better email deliverability through white labeling

What is white labeling?

White labeling shows ISPs that MDC DOT has your permission to send emails on your behalf. Permission is given by pointing very specific DNS entries from your domain registrar to MDC DOT. Once these DNS entries are entered and propagated, recipient email servers and services will read the headers on the emails you send and check the DNS records to verify the email was initiated at a trusted source. This drastically increases your ability to deliver emails and allows you to begin building a sender reputation for your domain and your IP addresses.

Through our email delivery service powered by Sendgrid, your MDC DOT Solo instance comes with your very own email sending subuser account, by default, that uses a shared email-sending IP and white label. If you do not have a custom white label in place using your domain name, “” will be used by default.
Types of white labeling

This type of white label allows recipient email servers and services to verify the identity of the email sender against the domain that the sender controls. This gives a layer of email authentication that helps in email deliverability. With only the domain white label, you are subject to the reputation of the shared IP address that all MDC DOT Solo subscribers use. This includes all subscribers who don’t have their own dedicated sending IP in place.

When you put a link or an image into an email and have click or open tracking turned on, the click tracking links and images will point to your domain. This shows the recipient email server that you are not trying to hide anything behind the links and that you control the content of your emails. Some bad actors use 3rd party link shortening services to populate the domains they list in their email content, and they do not include their own domain in those links. This practice is a red flag to spam filters.

An IP white label works in tandem with your domain white label, but the real reputation for email is usually associated with the IP address since many domains can point to the same IP.

You can send email from multiple domains from each of your dedicated IPs. Remember that if you use the same IP for multiple domains, each domain under that IP will positively or negatively affect the other domains.

It is always ideal to have both a domain and an IP white label. You will need to have a dedicated IP address or purchase one through MDC DOT Support in order to white label your IP address. A dedicated IP address is available for $25 per month in addition to your current MDC DOT subscription(s). Send a support ticket to [email protected] or call 866.535.0883. Support is available Monday through Friday, 8:30 am to 4:30 pm Central Time.

How to white label

Contact support by sending a support ticket to [email protected] or by calling 866.535.0883. Support is available Monday through Friday, 8:30 am to 4:30 pm Central Time.

Please provide the following information in your email:

  • Subject: “Request to white label email sending account”
  • Domain name to white label
  • Any other white labels you want to implement
    You can implement a domain and email white label at no extra cost. To get a dedicated IP address white label, you will need to authorize MDC DOT to add an additional charge of $25 per month to your subscription fees.

Please contact MDC DOT support, and a support specialist will provide you with the exact CNAME, TXT and A records to add to your DNS zone records within your domain registrar.

MDC DOT and our partner SendGrid do not host domains. Do not attempt to transfer a domain to MDC DOT or SendGrid. If you have already registered a domain, then you have a registrar, and it is often the hosting company where your website resides.
Any changes you make to your DNS records can immediately affect your hosted website and ability to reach your server resources. We cannot take any responsibility for any changes that you make to your DNS records, so please be very careful.

If you have any questions, please contact our support team or your domain registrar support.

How to Manage DNS records in GoDaddy:

How to manage DNS records in:

Contact support by sending a support ticket to [email protected] or by calling 866.535.0883. Please let a support specialist know you have added the DNS records and allow 24 hours for the records to propagate through the internet. Once in place, we will turn on your custom white labels and notify you that they are active for your MDC DOT instance.

If you have a question about white labeling, please contact our support desk:
[email protected]