A "subject" rule for procmail

Marco Calistri
2003-09-13T20:41:35Z

Hello I am receiving some spam with the following subject topic:

Sildenafil

so I tried to add the following rule into my .procmailrc file:

:0
* ^Subject:.*Sildenafil
spam/.

but only if the subject is exactly Sildenafil then message is moved to my spam
folder,infact if subject is a bit diffferent as for example:

RE:Sildenafil Citrate

then message pass through the inbox without any filtering.

How can I set the rule into procmailrc to block ALL Sildenafil topic subject ?

Thanks

Regards,Marco