If you are getting the below error while modifying the mailing list :
Bug in Mailman version 2.1.11.cp3 We're sorry, we hit a bug! Please inform the webmaster for this site of this problem. Printing of traceback and other system information has been explicitly inhibited, but the webmaster can find this information in the Mailman error logs.
The just run the below command from shell as root user
[email protected][#]chmod 02775 -R /usr/local/cpanel/3rdparty/mailman/
If the above command doesn’t resolve your issue then try the below commands :
And if the problem still persists then you have to reinstall mailman by using below steps.
First take backup for the current mailman directory.
root@[/usr/local/cpanel/3rdparty]#cp -p mailman mailman-back -R
Confirm disk space usage for both directory.
root@[/usr/local/cpanel/3rdparty]#du -sh mailman 407M mailman
root@[/usr/local/cpanel/3rdparty]#du -sh mailman-back 407M mailman
Then run the command
root@[/usr/local/cpanel/3rdparty]# /scripts/reinstallmailman --force
That’s all you are done..