Don't forward chain letters. If you must, watch out for hoaxes and urban legends, and make sure the message doesn't have multiple layers of greater-than signs (gt;), indicating multiple layers of careless in-line forwarding.
Ez birbidali kate-mezurik. Kontuz ibili zurrumurruekin eta hiri-legendekin, eta ziurtatu mezuak ez dituela hainbat eta hainbat 'handiago' (gt;) marka, askotan eta kontu handirik gabe birbidali dela esan nahi baitu horrek.