Access to the requested URL was blocked

While trying to access the URL:
/component/mailto/?tmpl=component&link=1ebcf865d79173af279bc52097384f1c4a2671a8
The content is blocked for the following condition:
(none)
Additional information:
(none)
This incident was logged with the following log identifier:
ZgVLH26qDDDs5bMzOHdUkgAAAAk
IT-Administrator:
edv@vulkaneifel.de