The CRTC has issued its first fine under Canada's anti-spam law.
Compu-Finder has 30 days to contest the CRTC's ruling or a face a penalty of $1.1-million.
The CRTC alleges the company has sent commercial e-mails to consumers without their consent and did not allow recipients to unsubscribe from the mailings.
The e-mails typically promoted corporate training courses.
The first phase of Canada's anti-spam legislation covering unsolicited e-mails kicked in last summer.
A second phase involving computer programs came into effect in January.