Symptoms
When accessing the Email Deliverability section within cpanel, you may see a variation of the message "Error: “HASH(0x2e5f600)” is not a valid IP address" and no domains are displayed.
Description
The error appears in the cPanel interface when looking at the Email Deliverability user section. This will show a variation of the following message where the hash may differ:
Error: “HASH(0x2e5f600)” is not a valid IP address
This usually happens when custom modifications have taken place to the users cPanel file.
Workaround
For the user in question, verify if there is an additional domain or a duplicate of the primary domain in the /var/cpanel/users/username file on the DNS= line. If there is you'll want to open the users file with your favorite editor, vi/vim/nano and modify the DNS= section to remove the duplicate entry. Run theupdateuserdomains script and that should handle the error in the interface.
# nano /var/cpanel/users/user_in_question
# /usr/local/cpanel/scripts/updateuserdomains
# diff -u /var/cpanel/users/user_in_question /root/cptechs/user_in_question
--- /var/cpanel/users/user_in_question 2020-06-28 17:36:56.811373069 -0700
+++ /root/cptechs/user_in_question 2020-06-28 17:36:45.027357290 -0700
@@ -8,6 +8,7 @@
DEMO=0
DISK_BLOCK_LIMIT=26214400
DNS=user_in_question.club
+DNS1=user_in_question.club
FEATURELIST=default
HASCGI=1
HASDKIM=1