Forwarded to devs DNS CNAME invalid when pointing to _domainkey

[Michiel Klaver]

TITLE:

DNS CNAME invalid when pointing to _domainkey​

PRODUCT, VERSION, OPERATING SYSTEM, ARCHITECTURE:

Plesk Onyx 17.5 Linux​

PROBLEM DESCRIPTION:

When creating a CNAME DNS record pointing to Microsoft Office365 for DKIM, Plesk generates an error indicating the content of the record is invalid. It seems not to like the underscore _ character. I followed the official manual to the letter [1].

According to the relevant RFCs, this should be valid [2].

[1] Manually hooking up DKIM signing in Office 365
[2] Underscores in DNS​

STEPS TO REPRODUCE:

Create a new CNAME DNS record, point it to a valid host containing an underscore, for example:
selector1-contoso-com._domainkey.contoso.onmicrosoft.com​

ACTUAL RESULT:

Plesk generates an error, stating I entered an invalid DNS record.​

EXPECTED RESULT:

I expect Plesk to follow RFC and accept this input as valid DNS.​

ANY ADDITIONAL INFORMATION:

​

YOUR EXPECTATIONS FROM PLESK SERVICE TEAM:

Confirm bug​

 

[IgorG]

Thank you for report.
This is existing bug PPPM-4301.
Workaround described in Unable to create DNS record with underscore symbol: The specified domain name is not valid. You need to specify a valid domain name like example.com

 

[mr-wolf]

EXPECTED RESULT:
I expect Plesk to follow RFC and accept this input as valid DNS.

 

[AYamshanov]

The issue was fixed in Plesk 17.8.11 (Change Log for Plesk, PPP-34267).

 

[mr-wolf]

Unable to create an Office365 DKIM alias in Plesk

 

[AYamshanov]

The issue was fixed in Plesk Onyx 17.5 (Change Log for Plesk, PPPM-4301)