While trying to change the mailing list password gives the error below:
Error: Failed to change password: listmng failed: listmng: Error: failed to change password for 'QWE_test'.
I try to change password for maillist name with capital letters and get error 'No such list'
/usr/lib/mailman/bin/change_pw -l 'QWE_test' -p <password>
No such list "QWE_test"
Mailman works with lowercase maillist names. Feature request for changing maillist password for uppercase maillist names is created, id #1699035.
The simplest way of solving the issue is to use corresponding CLI command with maillist names in lowercase variant:
/usr/lib/mailman/bin/change_pw -l 'qwe_test' -p <password>