Incorrect log statements, bug?

[Richard G]

For some other issue I was looking through the DA logs and found this in the errortaskq.log:

2017:03:12-22:44:01: Username somewebshopname is 15 characters long, but the directadmin.conf has this setting 'max_username_length=10'

I have various of these kinds of log entries in that logfile.

However, there is no user called "somewebshopname" or any other of the names mentioned.
Those names are all domain names, without the .tld behind it. So somewebshopname.com does exist. But there is no user with username "somewebshopname".

Looks to me like an incorrect log entry or am I mistaken?

 

[BBM]

I've had those before too.
My believe is this log-message appears when a spam/hackbot enters a 'smartly guessed' username in the DA-field. But when the username entered is longer than the limit in DA, the error is shown.

 

[Richard G]

That might indeed be the case. Thank you!