The user rohitink is seeking help to configure DKIM for their Discourse forum hosted on Linode, with DNS managed by Cloudflare. They have successfully set up SPF and DMARC but are unsure where to obtain the DKIM public key, as their cPanel does not include a subdomain for forum.mysite.com. pfaffman suggests checking with the mail delivery service and notes that Discourse sends emails from its own hostname, which can be modified in app.yml. They clarify that while DKIM and SPF help prevent spam classification, Discourse itself doesn’t require them for functionality. rohitink confirms emails are being sent successfully and that cPanel allows remote email delivery, but remains confused about retrieving the DKIM key.
Hello,
I have successfully installed Discourse.
My Primary site is hosted on a cPanel VPS somewhere else.
While my forum.mysite.com is hosted on a Linode Cloud VPS.
And my DNS is managed by CloudFlare.
I have successfully configured the DMARC & SPF. But I don’t know how to get the public key to add in DKIM txt record. Where do I get this public key from?
Thanks.
Your mail delivery service should tell you.
Yes. I am confused. Who will be my Mail delivery service here?
SMTP Details I have provided are those of my VPS’ cPanel. So should i fetch the DKIM public key from there?
But there is no subdomain forum.mysite.com in my cPanel. Will that be a problem?
As forum is an A record in my cloudflare pointing to linode’s IP
Got should Google dkim for more information.
By default discourse will send from the discourse host name. You can edit a line near the end of app.yml to change it.
If your cpanel will allow remote hosts to deliver mail from a remote ip with a username and password it might work. Discourse doesn’t really care if your can dkim or spf records ;it’s just a way to see that your mail isn’t classified as spam.
Yes, the cPanel allows sending of emails from different servers. The emails are being sent successfully.
Everything is correctly configured now. SPF, DMARC, etc.
Only DKIM keys seem to be a problem. I did google a lot. But its confusing.