Eliminating t,co domain messages

[drelexgrad]

I had been getting a lot of unsolicited e-mails.  Most have been caught by my Norton 360.  I finally turned on the Verizon SPAM filter and blocked (the delete option) e-mails with the e-mail address ending in @t.co, @btlol.com and others.  Now I’m getting a substantial number of these types of emails from @yahoo.com, and in the body of the e-mail is an internet link .  The site after the last “/” is always different, but the “t.co” is constant.  Does anyone know how to block and delete these e-mails that have “t.co” in the body of the text?  Any help would be appreciated.