Regex not working

[Phil Daws]

Hello all,

am trying to use this regex match:

header CLAM_SS_JURLBL X-Amavis-AV-Status =~ m{Sanesecurity\.Jurlbl}

but its not hitting against:

AV:Sanesecurity.Jurlbl.4796.UNOFFICIAL

What am I doing wrong please as its eluding me at present.

Thanks.