SMTP error code that indicates your email has been blocked because the sender is unauthenticated
What is the issue you’re encountering
Typically occurs when Gmail detects that the email is missing proper authentication through SPF (Sender Policy Framework) or DKIM (DomainKeys Identified Mail).
What steps have you taken to resolve the issue?
None
What are the steps to reproduce the issue?
We are currently using Cloudflare for our nameservers associated with our VPS platform via Namecheap WHM/cPanel.
I am encountering issues with email deliverability on my VPS platform through Namecheap WHM/cPanel. When sending test emails to my Gmail account. My messages are being blocked due to ongoing DKIM and SPF issues. Additionally, test emails sent to other providers such as Outlook and GMX are consistently being delivered to the junk email folders, also attributed to DKIM and SPF issues.
I have thoroughly reviewed and verified the DKIM and SPF settings within Namecheap WHM/cPanel, ensuring they match the configurations in Cloudflare’s settings area. Both settings are identical and show as valid.
Anyone assistance in resolving this matter would be greatly appreciated.
I am trying to send you five screenshots …but new members here are only allowed to send one per post. I will send later today. In, addition I am currently at work now. So, please excuse my response back.
I added a SPFtxt in Cloudflare, unless it’s in the incorrect place.
For starters here is one screen shot within Cloudflare showing SPF.
How do you place records in the root domain - how do I find? Does these updated configurations go into Cloudflare and Namecheap WHM/cPanel or both?
NOTE: Namecheap WHM/cPanel within it’s dashboard does give me the opportunity of renaming server2.worldwidepressnetwork(dot)com to worldwidepressnetwork(dot)com - will this also help resolve my SPF/DKIM (so to speak)?
Is the Root Domain area located in Namecheap WHM/cPanel or Cloudflare? Please be specific. And if it is under Namecheap WHM/cPanel …they have several SPF/DKIM editing sections (Editing Area Name Needed). Thanks George.
Root domain, naked domain, apex domain are all synonyms, that are referring to your domain name, without any sub-domain labels.
E.g. for a host name like “admin.intranet.example.com”, phrases like the root domain, the naked domain and the apex domain will all be referring to the domain name “example.com”.
When you’re using Cloudflare name servers for your domain name, the changes must be made through Cloudflare.