Mail Rate Limiting show error: Can't use an undefined value as a HASH reference at /usr/share/webmin/virtual-server/ratelimit.cgi line 56

SYSTEM INFORMATION
OS type and version Ubuntu Linux 24.04.4
Webmin version 2.660
Virtualmin version 8.2.0 GPL
Webserver version Apache/2.4.58
Related packages Mail Rate Limiting

Hi Virtualmin team,

Today we check the Mail Rate Limiting but show some error,

Rate limiting settings
HTTP/1.0 500 Perl execution failed Server: MiniServ/2.660 Date: Thu, 10 Sep 2026 08:13:39 GMT Content-type: text/html; Charset=utf-8 Connection: close

Error — Perl execution failed

Can’t use an undefined value as a HASH reference at /usr/share/webmin/virtual-server/ratelimit.cgi line 56.

I have update webmin/virtualmin last week. today some user over the limit, but now i cannot disable the setting, can we disable the setting at backend first?

Thankyou.

HI All,

I have remove some old rate setting for the site in /etc/milter-greylist/greylist.conf

maybe i have diasble some site before and the setting still keep, i have remove all the domain rate setting, the ui back to normal.