Question

Configure CNAMEs for SendGrid, how to?

Hello, I’m almost a complete noob at this.

I followd Discrouse’s install instructions and created an account on SendGrid to serve as a mail server for Discourse. However, I seem to cannot validate the domain (whitelabeling) that I added on the SendGrid account. It seems that I don’t know how to add the CNAME records for my droplet’s domain, because I’m getting the following message:

Error validating domain: Expected CNAME for “mail.medaddon.com” to match “u2210027.wl.sendgrid.net”. Expected CNAME for “s1._domainkey.medaddon.com” to match “s1.domainkey.u2210027.wl.sendgrid.net”. Expected CNAME for “s2._domainkey.medaddon.com” to match “s2.domainkey.u2210027.wl.sendgrid.net”.

I hope it’s still propagating.

Can somebody help, please? :D

Show comments
Submit an answer
Answer a question...

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

alieus • May 21, 2016
Accepted Answer

Hi!

In your do admin panel go to Network > Domains > yourdomain.com

Then, create the following cnames:

Source Target
mail u2210027.wl.sendgrid.net.
s1.domainkey s1.domainkey.u2210027.wl.sendgrid.net.
s2.domainkey s2.domainkey.u2210027.wl.sendgrid.net

Notice two things:

  1. In the source don’t put the whole domain aka mail.yourdomain.com; just the subdomain aka mail
  2. In the target append a dot
jessebadwal • July 3, 2016

SendGrid shows you something like

s1.domainkey.yourdomain.com s1.domainkey.u1XXXXXX.wXXXX.sendgrid.net

in DigitalOcean when adding a CNAME… drop the yourdomain.com from the first value

so enter

s1.domainkey -> s1.domainkey.u…

when you see the setup after saving… you will see something like

s2._domainkey.yourdomain.com. 1800 IN CNAME s2.domainkey.u1XXXXXX.wXXXX.sendgrid.net.

or something… then validation should happen fairly quick

Jon Schwenn
DigitalOcean Employee
DigitalOcean Employee badge
• January 25, 2016

Hey there,

Thank you for reaching out to us!

You’d want to add the CNAME records here.

If you have a problem with adding the CNAME records or would like support to double check the records for you, reach out to us with a support ticket.

Happy coding,

Jon Schwenn Platform Support Specialist DigitalOcean